639492081 (number)

639492081 is an odd 9-digits composite number following 639492080 and preceding 639492082. In scientific notation, it is written as 6.39492081 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 426108672 positive integers (up to 639492081) that are relatively prime to 639492081.

Interesting facts

Basic properties

Name

Name six hundred thirty-nine million four hundred ninety-two thousand eighty-one

Notation

Scientific notation 6.39492081 × 10^8
Engineering notation 6.39492081 × 10^6

Prime Factorization of 639492081

Prime Factorization 3 × 1979 × 107713

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 639492081
Product of the distinct prime numbers

The prime factorization of 639492081 is 3 × 1979 × 107713. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 9, 40, 211, 379, 9860, 9694, 98993, 20666, 124510, 257340, 380311, 4652645, 42424190, 82188463, 907994039, 780488907, 6264764652, 2738721375

Basic calculations (n = 639492081)

Multiplication

n×y
n×2 1278984162
n×3 1918476243
n×4 2557968324
n×5 3197460405

Division

n÷y
n÷2 319746040.5
n÷3 213164027
n÷3 159873020.25
n÷5 127898416.2

Exponentiation

ny
n2 408950121661710561
n3 2.6152036432665E+26
n4 1.6724020200713E+35
n5 1.069487848084E+44

Nth Root

y√n
2√n 25288.180658165
3√n 861.54584102886
4√n 159.02257908286
5√n 57.698833643498

Divisors of 639492081

1, 3, 1979, 5937, 107713, 323139, 213164027, 639492081

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 -639492080
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 639492081 can be divided by 8 positive divisors. The sum of these divisors (counting 639492081) is 1, the average is 0.125.

Base conversion 639492081

Base System Value
2 Binary 100110000111011101111111110001
3 Ternary 1122120022120012220
4 Quaternary 212013131333301
5 Quinary 2302202221311
6 Senary 143242311253
8 Octal 4607357761
10 Decimal 639492081
12 Duodecimal 15a1b8529
16 Hexadecimal 261ddff1
20 Vigesimal 9jgga41
36 Base36 akqj8x

Cryptographic Hash Functions

md5 c1ecc2973fb11704db3a700a0da57fea
sha1 b382379e42810342a0f1de71e86c12d65dcae5b0
sha256 295fe788fd323f90ceb9984277499d97ebbd6bb23790b95eed019789604cf033
sha512 07f0f829911730b5522b568e61436736076d6d0bff70878515a539023e8876ac9bde9283e6c509a703b274dfd4faec42dc7041acab837fb7ab96e657beb2aba6
ripemd-160 bea7395cb520ebddbb1d245cdbb5d42a44902065

639492081 as geometric shapes

Circle

Radius = n
Diameter 1278984162
Circumference 4018047247.3969
Area 1.2847546978971E+18

Sphere

Radius = n
Volume 1.0954539404436E+27
Surface area 5.1390187915883E+18
Circumference 4018047247.3969

Square

Length = n
Perimeter 2557968324
Area 408950121661710561
Diagonal 904378373.98039

Cube

Length = n
Surface area 2453700729970263366
Volume 2.6152036432665E+26
Space diagonal 1107632775.33

Equilateral Triangle

Length = n
Perimeter 1918476243
Area 1.7708059711989E+17
Altitude 553816387.66498

Triangular Pyramid

Length = n
Surface area 1.7708059711989E+17
Volume 3.0820470505625E+25
Height 301459457.99346