638996979 (number)

638996979 is an odd 9-digits composite number following 638996978 and preceding 638996980. In scientific notation, it is written as 6.38996979 × 10^8. The sum of its digits is 66. It has a total of 2 prime factors and 4 positive divisors. There are 425997984 positive integers (up to 638996979) that are relatively prime to 638996979.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-six thousand nine hundred seventy-nine

Notation

Scientific notation 6.38996979 × 10^8
Engineering notation 6.38996979 × 10^6

Prime Factorization of 638996979

Prime Factorization 3 × 212998993

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638996979
Product of the distinct prime numbers

The prime factorization of 638996979 is 3 × 212998993. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 37, 79, 947, 765, 7934, 482, 92077, 68190, 614562, 100256, 7232682, 8845833, 44627287, 70591417, 337859021, 562143314, 8934472082, 8888763450

Basic calculations (n = 638996979)

Multiplication

n×y
n×2 1277993958
n×3 1916990937
n×4 2555987916
n×5 3194984895

Division

n÷y
n÷2 319498489.5
n÷3 212998993
n÷3 159749244.75
n÷5 127799395.8

Exponentiation

ny
n2 408317139171126441
n3 2.6091341840427E+26
n4 1.6672288614089E+35
n5 1.0653542057419E+44

Nth Root

y√n
2√n 25278.389565002
3√n 861.32344411431
4√n 158.99179087299
5√n 57.689896657539

Divisors of 638996979

1, 3, 212998993, 638996979

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638996978
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638996979 can be divided by 4 positive divisors. The sum of these divisors (counting 638996979) is 1, the average is 0.25.

Base conversion 638996979

Base System Value
2 Binary 100110000101100101000111110011
3 Ternary 1122112101102001210
4 Quaternary 212011211013303
5 Quinary 2302040400404
6 Senary 143223531203
8 Octal 4605450763
10 Decimal 638996979
12 Duodecimal 159bb9b03
16 Hexadecimal 261651f3
20 Vigesimal 9jdec8j
36 Base36 akfx83

Cryptographic Hash Functions

md5 8e13d6908c825d0445fe47cf6379ecab
sha1 846d28ca09b86d988fc34f563e2b4f14d4622fa9
sha256 31a54ecec6a26c82657098b8d05a4190aefc95415f97cf0c75291507b54b8667
sha512 84e8e7195019199faceaa9d81e6be3c02fb13323119b02b2a1231caf645f8cc7ad12cb6e2e584be7e9d4668c28a9062238789f1064ecc62de2002361a04ebc6a
ripemd-160 6dc370ede35415fae28a6714f8db9a84226691a8

638996979 as geometric shapes

Circle

Radius = n
Diameter 1277993958
Circumference 4014936429.7849
Area 1.2827661247548E+18

Sphere

Radius = n
Volume 1.0929115713091E+27
Surface area 5.1310644990192E+18
Circumference 4014936429.7849

Square

Length = n
Perimeter 2555987916
Area 408317139171126441
Diagonal 903678194.01724

Cube

Length = n
Surface area 2449902835026758646
Volume 2.6091341840427E+26
Space diagonal 1106775233.511

Equilateral Triangle

Length = n
Perimeter 1916990937
Area 1.7680650766139E+17
Altitude 553387616.75551

Triangular Pyramid

Length = n
Surface area 1.7680650766139E+17
Volume 3.0748941242704E+25
Height 301226064.67241