1278398 (number)
1,278,398 (one million two hundred seventyeight thousand three hundred ninetyeight) is an even sevendigits composite number following 1278397 and preceding 1278399. In scientific notation, it is written as 1.278398 × 10^{6}. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 581,080 positive integers (up to 1278398) that are relatively prime to 1278398.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 7
 Sum of Digits 38
 Digital Root 2
Name
Short name  1 million 278 thousand 398 

Full name  one million two hundred seventyeight thousand three hundred ninetyeight 
Notation
Scientific notation  1.278398 × 10^{6} 

Engineering notation  1.278398 × 10^{6} 
Prime Factorization of 1278398
Prime Factorization 2 × 11 × 58109
Composite numberω(n)  Distinct Factors  3  Total number of distinct prime factors 

Ω(n)  Total Factors  3  Total number of prime factors 
rad(n)  Radical  1278398  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  0  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 1,278,398 is 2 × 11 × 58109. Since it has a total of 3 prime factors, 1,278,398 is a composite number.
Divisors of 1278398
8 divisors
τ(n)  Total Divisors  8  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  2091960  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  813562  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  261495  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  1130.6626375714  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  4.8888047572611  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 1,278,398 can be divided by 8 positive divisors (out of which 4 are even, and 4 are odd). The sum of these divisors (counting 1,278,398) is 2,091,960, the average is 261,495.
Other Arithmetic Functions (n = 1278398)
φ(n)  Euler Totient  581080  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  290540  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 98261  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  0  The number of ways n can be represented as the sum of 2 squares 
There are 581,080 positive integers (less than 1,278,398) that are coprime with 1,278,398. And there are approximately 98,261 prime numbers less than or equal to 1,278,398.
Divisibility of 1278398
m  2  3  4  5  6  7  8  9 

n mod m  0  2  2  3  2  2  6  2 
The number 1,278,398 is divisible by 2.
Classification of 1278398
By Arithmetic functions
 Arithmetic
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Other numbers
 Sphenic
Base conversion (1278398)
Base  System  Value 

2  Binary  100111000000110111110 
3  Ternary  2101221122002 
4  Quaternary  10320012332 
5  Quinary  311402043 
6  Senary  43222302 
8  Octal  4700676 
10  Decimal  1278398 
12  Duodecimal  517992 
16  Hexadecimal  1381be 
20  Vigesimal  7jfji 
36  Base36  ref2 
Basic calculations (n = 1278398)
Multiplication
n×yn×2  2556796 

n×3  3835194 
n×4  5113592 
n×5  6391990 
Division
n÷yn÷2  639199.000 

n÷3  426132.666 
n÷4  319599.500 
n÷5  255679.600 
Exponentiation
n^{y}n^{2}  1634301446404 

n^{3}  2089287700479980792 
n^{4}  2670941217718206484531216 
n^{5}  3414525910848519733411737471968 
Nth Root
^{y}√n^{2}√n  1130.6626375714 

^{3}√n  108.53138890939 
^{4}√n  33.625327322889 
^{5}√n  16.646894090385 
1278398 as geometric shapes
Circle
Radius = nDiameter  2556796 

Circumference  8032411.5303278 
Area  5134309417774 
Sphere
Radius = nVolume  8.7515878547512E+18 

Surface area  20537237671096 
Circumference  8032411.5303278 
Square
Length = nPerimeter  5113592 

Area  1634301446404 
Diagonal  1807927.7897106 
Cube
Length = nSurface area  9805808678424 

Volume  2089287700479980792 
Space diagonal  2214250.2882944 
Equilateral Triangle
Length = nPerimeter  3835194 

Area  707673285013.76 
Altitude  1107125.1441472 
Triangular Pyramid
Length = nSurface area  2830693140055 

Volume  2.4622491680984E+17 
Height  1043807.5960648 
Cryptographic Hash Functions
md5  2b41b7e7c2ca9eb80fd616b438b04cc0 

sha1  900ebe3dc8411dd80e6b2c466d09d334f74027b4 
sha256  ba7f0c174bae177180f2d25859ab0eb48273eb5b6977a97a39d3b1dce012e335 
sha512  ec1a230fe25733d5ddb730466e32e0da058e4fcacff0651c99c7770d73ed5cca0219b8208aefc5bd008308353f364619d5edccbf4bf7755c2b915d0bed0ae691 
ripemd160  73b09988d2e0a824d1adfb47bc0eec0465735816 