638994906 (number)

638994906 is an even 9-digits composite number following 638994905 and preceding 638994907. In scientific notation, it is written as 6.38994906 × 10^8. The sum of its digits is 54. It has a total of 7 prime factors and 64 positive divisors. There are 192844800 positive integers (up to 638994906) that are relatively prime to 638994906.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38994906 × 10^8
Engineering notation 6.38994906 × 10^6

Prime Factorization of 638994906

Prime Factorization 2 × 33 × 3 × 3 × 3 × 311 × 1153

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 70999434
Product of the distinct prime numbers

The prime factorization of 638994906 is 2 × 33 × 3 × 3 × 3 × 311 × 1153. Since it has a total of 7 prime factors.

Most popular turbo-numbers

10, 6, 48, 1, 69, 214, 6896, 3195, 83621, 37571, 7009, 478218, 5335271, 7252966, 65936737, 93810103, 377101509, 247484352, 9542271508, 4208266546

Basic calculations (n = 638994906)

Multiplication

n×y
n×2 1277989812
n×3 1916984718
n×4 2555979624
n×5 3194974530

Division

n÷y
n÷2 319497453
n÷3 212998302
n÷3 159748726.5
n÷5 127798981.2

Exponentiation

ny
n2 408314489893948836
n3 2.6091087908822E+26
n4 1.6672072265736E+35
n5 1.0653369250269E+44

Nth Root

y√n
2√n 25278.348561565
3√n 861.3225126934
4√n 158.99166192466
5√n 57.689859226592

Divisors of 638994906

1, 2, 3, 6, 9, 18, 27, 33, 54, 66, 99, 198, 297, 311, 594, 622, 891, 933, 1153, 1782, 1866, 2306, 2799, 3459, 5598, 6918, 8397, 10263, 10377, 16794, 20526, 20754, 30789, 31131, 38049, 61578, 62262, 76098, 92367, 114147, 184734, 228294, 277101, 342441, 358583, 554202, 684882, 717166, 1027323, 1075749, 2054646, 2151498, 3227247, 6454494, 9681741, 11833239, 19363482, 23666478, 35499717, 70999434, 106499151, 212998302, 319497453, 638994906

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638994905
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638994906 can be divided by 64 positive divisors. The sum of these divisors (counting 638994906) is 1, the average is 0.015625.

Base conversion 638994906

Base System Value
2 Binary 100110000101100100100111011010
3 Ternary 1122112101022020000
4 Quaternary 212011210213122
5 Quinary 2302040314111
6 Senary 143223513430
8 Octal 4605444732
10 Decimal 638994906
12 Duodecimal 159bb8876
16 Hexadecimal 261649da
20 Vigesimal 9jde756
36 Base36 akfvmi

Cryptographic Hash Functions

md5 2c9e797589a8370a62bf8d6fe9f91414
sha1 a932cfaa89ef5023621474aabe994e0428e596ad
sha256 c6683d040a35c0895e1d070e4acf23bef10f0554632d42a9f7281a08d4c331bd
sha512 f8aad295258b05508bb38325c3b61dc53f49a79c8cd61011a474cc352ea42e130c5ab32f81cc3f306822a7a5a6c8f1d39b7188e80199a6c5ca991aced751c4a3
ripemd-160 6149c12190cfaf6b813ce4b1c81c9a2b5a97c7aa

638994906 as geometric shapes

Circle

Radius = n
Diameter 1277989812
Circumference 4014923404.7418
Area 1.2827578018051E+18

Sphere

Radius = n
Volume 1.0929009346469E+27
Surface area 5.1310312072204E+18
Circumference 4014923404.7418

Square

Length = n
Perimeter 2555979624
Area 408314489893948836
Diagonal 903675262.35252

Cube

Length = n
Surface area 2449886939363693016
Volume 2.6091087908822E+26
Space diagonal 1106771642.9697

Equilateral Triangle

Length = n
Perimeter 1916984718
Area 1.7680536049072E+17
Altitude 553385821.48485

Triangular Pyramid

Length = n
Surface area 1.7680536049072E+17
Volume 3.0748641981438E+25
Height 301225087.45084