638992008 (number)

638992008 is an even 9-digits composite number following 638992007 and preceding 638992009. In scientific notation, it is written as 6.38992008 × 10^8. The sum of its digits is 45. It has a total of 6 prime factors and 32 positive divisors. There are 211040640 positive integers (up to 638992008) that are relatively prime to 638992008.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38992008 × 10^8
Engineering notation 6.38992008 × 10^6

Prime Factorization of 638992008

Prime Factorization 2 × 2 × 2 × 9 × 109 × 81421

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 159748002
Product of the distinct prime numbers

The prime factorization of 638992008 is 2 × 2 × 2 × 9 × 109 × 81421. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 4, 45, 72, 322, 655, 3372, 9157, 35284, 69550, 997271, 935710, 7875190, 777902, 11294158, 95661339, 673240940, 864391932, 3280848195, 9357378074

Basic calculations (n = 638992008)

Multiplication

n×y
n×2 1277984016
n×3 1916976024
n×4 2555968032
n×5 3194960040

Division

n÷y
n÷2 319496004
n÷3 212997336
n÷3 159748002
n÷5 127798401.6

Exponentiation

ny
n2 408310786287872064
n3 2.6090732921815E+26
n4 1.6671769819902E+35
n5 1.0653127674133E+44

Nth Root

y√n
2√n 25278.291239718
3√n 861.32121058787
4√n 158.99148165772
5√n 57.68980689894

Divisors of 638992008

1, 2, 4, 8, 9, 18, 36, 72, 109, 218, 436, 872, 981, 1962, 3924, 7848, 81421, 162842, 325684, 651368, 732789, 1465578, 2931156, 5862312, 8874889, 17749778, 35499556, 70999112, 79874001, 159748002, 319496004, 638992008

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638992007
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638992008 can be divided by 32 positive divisors. The sum of these divisors (counting 638992008) is 1, the average is 0.03125.

Base conversion 638992008

Base System Value
2 Binary 100110000101100011111010001000
3 Ternary 1122112101011020200
4 Quaternary 212011203322020
5 Quinary 2302040221013
6 Senary 143223452200
8 Octal 4605437210
10 Decimal 638992008
12 Duodecimal 159bb7060
16 Hexadecimal 26163e88
20 Vigesimal 9jde008
36 Base36 akfte0

Cryptographic Hash Functions

md5 7a622b6a69e7541481aa04e4f5104cd3
sha1 e55da41477a1406e4ed2cbec69621531dea80eb9
sha256 682e27abe298287dd0b5a97a94172220d67db1d466784599441267c1c2fc1c7a
sha512 5f9d31e1b862ab3ce46b7d35f0bcbe97ab2f73d4025c6436a398ea9a404289eda5206722823f6aa414e54ff7938f2a9edc0da3b30010b9e031db67ab2f107938
ripemd-160 293da5b6760713ec5e7e21f564cbac43653b655a

638992008 as geometric shapes

Circle

Radius = n
Diameter 1277984016
Circumference 4014905196.0708
Area 1.2827461665835E+18

Sphere

Radius = n
Volume 1.0928860649859E+27
Surface area 5.1309846663338E+18
Circumference 4014905196.0708

Square

Length = n
Perimeter 2555968032
Area 408310786287872064
Diagonal 903671163.96162

Cube

Length = n
Surface area 2449864717727232384
Volume 2.6090732921815E+26
Space diagonal 1106766623.4865

Equilateral Triangle

Length = n
Perimeter 1916976024
Area 1.7680375678225E+17
Altitude 553383311.74323

Triangular Pyramid

Length = n
Surface area 1.7680375678225E+17
Volume 3.0748223625237E+25
Height 301223721.32054