639701981 (number)

639701981 is an odd 9-digits composite number following 639701980 and preceding 639701982. In scientific notation, it is written as 6.39701981 × 10^8. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 617643264 positive integers (up to 639701981) that are relatively prime to 639701981.

Interesting facts

Basic properties

Name

Name six hundred thirty-nine million seven hundred one thousand nine hundred eighty-one

Notation

Scientific notation 6.39701981 × 10^8
Engineering notation 6.39701981 × 10^6

Prime Factorization of 639701981

Prime Factorization 29 × 22058689

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 639701981
Product of the distinct prime numbers

The prime factorization of 639701981 is 29 × 22058689. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 16, 48, 522, 542, 6633, 9006, 75999, 68256, 763924, 671530, 7321288, 9131424, 27534776, 56080947, 751644540, 391165640, 1342649113, 4654690206

Basic calculations (n = 639701981)

Multiplication

n×y
n×2 1279403962
n×3 1919105943
n×4 2558807924
n×5 3198509905

Division

n÷y
n÷2 319850990.5
n÷3 213233993.66667
n÷3 159925495.25
n÷5 127940396.2

Exponentiation

ny
n2 409218624495324361
n3 2.6177796475175E+26
n4 1.6745988263385E+35
n5 1.071244186589E+44

Nth Root

y√n
2√n 25292.330477835
3√n 861.64009222995
4√n 159.03562644211
5√n 57.702620835172

Divisors of 639701981

1, 29, 22058689, 639701981

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 -639701980
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 639701981 can be divided by 4 positive divisors. The sum of these divisors (counting 639701981) is 1, the average is 0.25.

Base conversion 639701981

Base System Value
2 Binary 100110001000010001001111011101
3 Ternary 1122120201020010222
4 Quaternary 212020101033131
5 Quinary 2302230430411
6 Senary 143251011125
8 Octal 4610211735
10 Decimal 639701981
12 Duodecimal 15a299aa5
16 Hexadecimal 262113dd
20 Vigesimal 9ji2ej1
36 Base36 akv17h

Cryptographic Hash Functions

md5 1439007e97917be357a21386964a4e8d
sha1 ddb89383265dc1299441a1f633cf12b11d36b8ba
sha256 5be50d3e7e5fd80c22055c40cf8b98651c269f8c0400afb19a756b2245dba12a
sha512 c9fb80cc245653aca6183ac859cfbb1f09f50fdbd970f24704e50a902e86ec37428dfe18304b2aaefa838e403b4a44ce1cb8eb62724f8c44ecba3d18da10288e
ripemd-160 cd45ceb852392e12e317408de1d175a7510cb6c5

639701981 as geometric shapes

Circle

Radius = n
Diameter 1279403962
Circumference 4019366087.9929
Area 1.2855982244266E+18

Sphere

Radius = n
Volume 1.0965329745811E+27
Surface area 5.1423928977065E+18
Circumference 4019366087.9929

Square

Length = n
Perimeter 2558807924
Area 409218624495324361
Diagonal 904675217.40714

Cube

Length = n
Surface area 2455311746971946166
Volume 2.6177796475175E+26
Space diagonal 1107996332.7945

Equilateral Triangle

Length = n
Perimeter 1919105943
Area 1.7719686225734E+17
Altitude 553998166.39723

Triangular Pyramid

Length = n
Surface area 1.7719686225734E+17
Volume 3.0850829006863E+25
Height 301558405.80238