638961729 (number)

638961729 is an odd 9-digits composite number following 638961728 and preceding 638961730. In scientific notation, it is written as 6.38961729 × 10^8. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 365120976 positive integers (up to 638961729) that are relatively prime to 638961729.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred sixty-one thousand seven hundred twenty-nine

Notation

Scientific notation 6.38961729 × 10^8
Engineering notation 6.38961729 × 10^6

Prime Factorization of 638961729

Prime Factorization 3 × 7 × 30426749

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638961729
Product of the distinct prime numbers

The prime factorization of 638961729 is 3 × 7 × 30426749. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638961729)

Multiplication

n×y
n×2 1277923458
n×3 1916885187
n×4 2555846916
n×5 3194808645

Division

n÷y
n÷2 319480864.5
n÷3 212987243
n÷3 159740432.25
n÷5 127792345.8

Exponentiation

ny
n2 408272091126669441
n3 2.6087024124874E+26
n4 1.6668610039294E+35
n5 1.0650603890734E+44

Nth Root

y√n
2√n 25277.692319514
3√n 861.30760564104
4√n 158.98959814879
5√n 57.68926015571

Divisors of 638961729

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638961728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638961729 can be divided by 8 positive divisors. The sum of these divisors (counting 638961729) is 1, the average is 0.125.

Base conversion 638961729

Base System Value
2 Binary 100110000101011100100001000001
3 Ternary 1122112022121201020
4 Quaternary 212011130201001
5 Quinary 2302033233404
6 Senary 143223100053
8 Octal 4605344101
10 Decimal 638961729
12 Duodecimal 159ba1629
16 Hexadecimal 2615c841
20 Vigesimal 9jda469
36 Base36 akf60x

Cryptographic Hash Functions

md5 420ae749cff3bf833716699b5c97f297
sha1 1ced37fc4a6a2240cab5cdcaad8c4b01ce29813a
sha256 3dbb2f04473a61ffaf946ea552dc46b3a9cd1dfe56611ffe3537ca3c5db4005f
sha512 70ccc2f4fb6dc22d2b2c8d9c60fd5eb3060e6f0a39c6c027a3bfb4931cd9fc689268ac62fc188ac0e6f1fe5865cf73cc5cc6f8c83dbc9ad8ac65d9c162fa4c81
ripemd-160 a8855bd2de61f83b38f80ccd616c361a017ea9a0

638961729 as geometric shapes

Circle

Radius = n
Diameter 1277923458
Circumference 4014714947.5029
Area 1.2826246021493E+18

Sphere

Radius = n
Volume 1.092730711263E+27
Surface area 5.1304984085971E+18
Circumference 4014714947.5029

Square

Length = n
Perimeter 2555846916
Area 408272091126669441
Diagonal 903628342.98916

Cube

Length = n
Surface area 2449632546760016646
Volume 2.6087024124874E+26
Space diagonal 1106714178.7201

Equilateral Triangle

Length = n
Perimeter 1916885187
Area 1.7678700128595E+17
Altitude 553357089.36003

Triangular Pyramid

Length = n
Surface area 1.7678700128595E+17
Volume 3.0743852766126E+25
Height 301209447.66305