638994908 (number)

638994908 is an even 9-digits composite number following 638994907 and preceding 638994909. In scientific notation, it is written as 6.38994908 × 10^8. The sum of its digits is 56. It has a total of 3 prime factors and 6 positive divisors. There are 319497452 positive integers (up to 638994908) that are relatively prime to 638994908.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38994908 × 10^8
Engineering notation 6.38994908 × 10^6

Prime Factorization of 638994908

Prime Factorization 2 × 2 × 159748727

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 319497454
Product of the distinct prime numbers

The prime factorization of 638994908 is 2 × 2 × 159748727. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638994908)

Multiplication

n×y
n×2 1277989816
n×3 1916984724
n×4 2555979632
n×5 3194974540

Division

n÷y
n÷2 319497454
n÷3 212998302.66667
n÷3 159748727
n÷5 127798981.6

Exponentiation

ny
n2 408314492449928464
n3 2.6091088153811E+26
n4 1.6672072474464E+35
n5 1.065336941699E+44

Nth Root

y√n
2√n 25278.348601125
3√n 861.32251359203
4√n 158.99166204907
5√n 57.689859262705

Divisors of 638994908

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638994907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638994908 can be divided by 6 positive divisors. The sum of these divisors (counting 638994908) is 1, the average is 0.16666666666667.

Base conversion 638994908

Base System Value
2 Binary 100110000101100100100111011100
3 Ternary 1122112101022020002
4 Quaternary 212011210213130
5 Quinary 2302040314113
6 Senary 143223513432
8 Octal 4605444734
10 Decimal 638994908
12 Duodecimal 159bb8878
16 Hexadecimal 261649dc
20 Vigesimal 9jde758
36 Base36 akfvmk

Cryptographic Hash Functions

md5 528db43e059f7230d078698391c97407
sha1 fd46d6291bb39cdd7977fa4d68516fc56f1aa28b
sha256 3d9a047f1866b6aee8c172b69b3ce38d279a647958d2e5bdb0a1f55e13410522
sha512 1f4e4472a9cac555ee7a533318d02ca228b58d05d2e3848059d7614ae7df73209ee36d4cd986a84a286cc5f5e1d57619c6a75696241e19eca028114e4484c943
ripemd-160 f7304ac4a0313306b3fe042b0629dfc5fc756ccd

638994908 as geometric shapes

Circle

Radius = n
Diameter 1277989816
Circumference 4014923417.3082
Area 1.2827578098349E+18

Sphere

Radius = n
Volume 1.092900944909E+27
Surface area 5.1310312393398E+18
Circumference 4014923417.3082

Square

Length = n
Perimeter 2555979632
Area 408314492449928464
Diagonal 903675265.18095

Cube

Length = n
Surface area 2449886954699570784
Volume 2.6091088153811E+26
Space diagonal 1106771646.4338

Equilateral Triangle

Length = n
Perimeter 1916984724
Area 1.7680536159749E+17
Altitude 553385823.2169

Triangular Pyramid

Length = n
Surface area 1.7680536159749E+17
Volume 3.0748642270159E+25
Height 301225088.39365