638961391 (number)

638961391 is an odd 9-digits prime number following 638961390 and preceding 638961392. In scientific notation, it is written as 6.38961391 × 10^8. The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors. There are 638961390 positive integers (up to 638961391) that are relatively prime to 638961391.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred sixty-one thousand three hundred ninety-one

Notation

Scientific notation 6.38961391 × 10^8
Engineering notation 6.38961391 × 10^6

Prime Factorization of 638961391

Prime Factorization 638961391

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 638961391
Product of the distinct prime numbers

The prime factorization of 638961391 is 638961391. Since it has a total of 1 prime factors.

Most popular turbo-numbers

8, 8, 15, 1, 721, 310, 6610, 4807, 16735, 59072, 939356, 73281, 4552379, 6177224, 90342880, 88509299, 838414031, 335346500, 8995436270, 7961056915

Basic calculations (n = 638961391)

Multiplication

n×y
n×2 1277922782
n×3 1916884173
n×4 2555845564
n×5 3194806955

Division

n÷y
n÷2 319480695.5
n÷3 212987130.33333
n÷3 159740347.75
n÷5 127792278.2

Exponentiation

ny
n2 408271659188654881
n3 2.6086982726106E+26
n4 1.6668574769666E+35
n5 1.0650575720813E+44

Nth Root

y√n
2√n 25277.685633776
3√n 861.3074537686
4√n 158.98957712308
5√n 57.689254052379

Divisors of 638961391

1, 638961391

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 638961392
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 319480696
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 25277.685653556
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999968699
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638961391 can be divided by 2 positive divisors. The sum of these divisors (counting 638961391) is 638961392, the average is 319480696.

Base conversion 638961391

Base System Value
2 Binary 100110000101011100011011101111
3 Ternary 1122112022121020201
4 Quaternary 212011130123233
5 Quinary 2302033231031
6 Senary 143223054331
8 Octal 4605343357
10 Decimal 638961391
12 Duodecimal 159ba13a7
16 Hexadecimal 2615c6ef
20 Vigesimal 9jda39b
36 Base36 akf5rj

Cryptographic Hash Functions

md5 126c0ff16b268fe1895c27336328d9bc
sha1 3fd3c4f8ae845b0e094506ecf0bb3ea1b4168d4d
sha256 2958e227d25b29f9c04f0a8d3aba3e34627cdfb5f583f81133d1432836df6157
sha512 82f79fac3796f266eb075777438bb0c013a08a45dade64f0725061147b1ac22c7703591d4e7a130bde3c3628aef7ede26b3615b745fc5da99376a10f6e948696
ripemd-160 d66c97cfbe761f46852f48f6307511c959c92756

638961391 as geometric shapes

Circle

Radius = n
Diameter 1277922782
Circumference 4014712823.7862
Area 1.282623245176E+18

Sphere

Radius = n
Volume 1.0927289771554E+27
Surface area 5.130492980704E+18
Circumference 4014712823.7862

Square

Length = n
Perimeter 2555845564
Area 408271659188654881
Diagonal 903627864.98498

Cube

Length = n
Surface area 2449629955131929286
Volume 2.6086982726106E+26
Space diagonal 1106713593.2869

Equilateral Triangle

Length = n
Perimeter 1916884173
Area 1.767868142513E+17
Altitude 553356796.64344

Triangular Pyramid

Length = n
Surface area 1.767868142513E+17
Volume 3.074380397721E+25
Height 301209288.32833