638631679 (number)

638631679 is an odd 9-digits composite number following 638631678 and preceding 638631680. In scientific notation, it is written as 6.38631679 × 10^8. The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors. There are 547398576 positive integers (up to 638631679) that are relatively prime to 638631679.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38631679 × 10^8
Engineering notation 6.38631679 × 10^6

Prime Factorization of 638631679

Prime Factorization 7 × 91233097

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638631679
Product of the distinct prime numbers

The prime factorization of 638631679 is 7 × 91233097. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 95, 90, 631, 259, 8775, 7376, 70160, 87460, 47562, 535729, 8512351, 679551, 36755585, 38664929, 408609506, 261758113, 999054002, 7620474221

Basic calculations (n = 638631679)

Multiplication

n×y
n×2 1277263358
n×3 1915895037
n×4 2554526716
n×5 3193158395

Division

n÷y
n÷2 319315839.5
n÷3 212877226.33333
n÷3 159657919.75
n÷5 127726335.8

Exponentiation

ny
n2 407850421422359041
n3 2.6046619941382E+26
n4 1.663419662544E+35
n5 1.0623124919721E+44

Nth Root

y√n
2√n 25271.162992629
3√n 861.15927983742
4√n 158.96906300481
5√n 57.683299149059

Divisors of 638631679

1, 7, 91233097, 638631679

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 -638631678
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 638631679 can be divided by 4 positive divisors. The sum of these divisors (counting 638631679) is 1, the average is 0.25.

Base conversion 638631679

Base System Value
2 Binary 100110000100001011111011111111
3 Ternary 1122111200211222011
4 Quaternary 212010023323333
5 Quinary 2301442203204
6 Senary 143212032051
8 Octal 4604137377
10 Decimal 638631679
12 Duodecimal 159a62627
16 Hexadecimal 2610beff
20 Vigesimal 9jb8j3j
36 Base36 ak83cv

Cryptographic Hash Functions

md5 09ed47991051b85f9f1774c3c8b82ccc
sha1 66f3106803527d939022dd803838f80753be304c
sha256 7bbcc2b3129678a27f649de742852588e75c2a4e4afb56f4603fb062b9b7807a
sha512 9004eb89020010feacef9d9cf03768775dfebd5e275e872c963471ab8057855adcd44babec56c5cd11fe59efa89005c6c09c510631f73eaf1dd51c7d57e80043
ripemd-160 7cb22a066bb4edfdffd35e0abbf8f5e892793832

638631679 as geometric shapes

Circle

Radius = n
Diameter 1277263358
Circumference 4012641182.1922
Area 1.281299887704E+18

Sphere

Radius = n
Volume 1.0910382647825E+27
Surface area 5.1251995508159E+18
Circumference 4012641182.1922

Square

Length = n
Perimeter 2554526716
Area 407850421422359041
Diagonal 903161581.8029

Cube

Length = n
Surface area 2447102528534154246
Volume 2.6046619941382E+26
Space diagonal 1106142515.351

Equilateral Triangle

Length = n
Perimeter 1915895037
Area 1.7660441294798E+17
Altitude 553071257.67551

Triangular Pyramid

Length = n
Surface area 1.7660441294798E+17
Volume 3.0696235979233E+25
Height 301053860.60097