638996981, six hundred thirty-eight million nine hundred ninety-six thousand nine hundred eighty-one: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

Interesting facts

638996981 has 4 divisors, whose sum is 730282272
The reverse of 638996981 is 189699836
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 9
Sum of Digits 59
Digital Root 5

Name

Name	six hundred thirty-eight million nine hundred ninety-six thousand nine hundred eighty-one

Notation

Scientific notation	6.38996981 × 10^8
Engineering notation	6.38996981 × 10^6

Prime Factorization of 638996981

Prime Factorization 7 × 91285283

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	638996981	Product of the distinct prime numbers

The prime factorization of 638996981 is 7 × 91285283. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 94, 98, 977, 222, 8992, 4969, 20340, 29345, 292118, 97692, 9359554, 2639154, 22619855, 52504093, 659014132, 592964699, 8921984015, 3055450600

Basic calculations (n = 638996981)

Multiplication

n×y

n×2	1277993962
n×3	1916990943
n×4	2555987924
n×5	3194984905

Division

n÷y

n÷2	319498490.5
n÷3	212998993.66667
n÷3	159749245.25
n÷5	127799396.2

Exponentiation

n^y

n²	408317141727114361
n³	2.6091342085418E+26
n⁴	1.667228882282E+35
n⁵	1.0653542224142E+44

Nth Root

^y√n

²√n	25278.389604561
³√n	861.32344501293
⁴√n	158.9917909974
⁵√n	57.689896693652

Divisors of 638996981

1, 7, 91285283, 638996981

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	-638996980	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 638996981 can be divided by 4 positive divisors. The sum of these divisors (counting 638996981) is 1, the average is 0.25.

Base conversion 638996981

Base	System	Value
2	Binary	100110000101100101000111110101
3	Ternary	1122112101102001212
4	Quaternary	212011211013311
5	Quinary	2302040400411
6	Senary	143223531205
8	Octal	4605450765
10	Decimal	638996981
12	Duodecimal	159bb9b05
16	Hexadecimal	261651f5
20	Vigesimal	9jdec91
36	Base36	akfx85

Cryptographic Hash Functions

md5	b85a522835cdedb0bd9843bea9e019f8
sha1	91dbb5b5c676eaf1fa71c4f74af60b3874b04f7b
sha256	ff5c32280e4663da3bf05c0398e0e1aeebf52629c7eb5b500914eaf143f04895
sha512	69a1a9b042c41dca925019654992256975766270f001461f7ceb552c20c63b412576af0cd8c5c75854d3c0be77e299a7c3465e390a0b87e0a08bdc9804a79602
ripemd-160	21b97b8b4b1958ca999862e00ff89ebca5c8294f

638996981 as geometric shapes

Circle

Radius = n

Diameter	1277993962
Circumference	4014936442.3513
Area	1.2827661327847E+18

Sphere

Radius = n

Volume	1.0929115815713E+27
Surface area	5.1310645311387E+18
Circumference	4014936442.3513

Square

Length = n

Perimeter	2555987924
Area	408317141727114361
Diagonal	903678196.84566

Cube

Length = n

Surface area	2449902850362686166
Volume	2.6091342085418E+26
Space diagonal	1106775236.9751

Equilateral Triangle

Length = n

Perimeter	1916990943
Area	1.7680650876817E+17
Altitude	553387618.48756

Triangular Pyramid

Length = n

Surface area	1.7680650876817E+17
Volume	3.0748941531428E+25
Height	301226065.61522