638964021 (number)

638964021 is an odd 9-digits composite number following 638964020 and preceding 638964022. In scientific notation, it is written as 6.38964021 × 10^8. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 425882960 positive integers (up to 638964021) that are relatively prime to 638964021.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38964021 × 10^8
Engineering notation 6.38964021 × 10^6

Prime Factorization of 638964021

Prime Factorization 3 × 5147 × 41381

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638964021
Product of the distinct prime numbers

The prime factorization of 638964021 is 3 × 5147 × 41381. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 1, 42, 4, 278, 676, 3655, 5744, 60266, 2181, 638196, 502940, 6838340, 6924501, 10729152, 45233264, 664015557, 304190773, 4592196857, 9736092230

Basic calculations (n = 638964021)

Multiplication

n×y
n×2 1277928042
n×3 1916892063
n×4 2555856084
n×5 3194820105

Division

n÷y
n÷2 319482010.5
n÷3 212988007
n÷3 159741005.25
n÷5 127792804.2

Exponentiation

ny
n2 408275020132488441
n3 2.6087304853771E+26
n4 1.6668849206418E+35
n5 1.0650794914376E+44

Nth Root

y√n
2√n 25277.73765589
3√n 861.30863549649
4√n 158.98974072527
5√n 57.689301542725

Divisors of 638964021

1, 3, 5147, 15441, 41381, 124143, 212988007, 638964021

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 -638964020
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 638964021 can be divided by 8 positive divisors. The sum of these divisors (counting 638964021) is 1, the average is 0.125.

Base conversion 638964021

Base System Value
2 Binary 100110000101011101000100110101
3 Ternary 1122112022201212010
4 Quaternary 212011131010311
5 Quinary 2302033322041
6 Senary 143223114433
8 Octal 4605350465
10 Decimal 638964021
12 Duodecimal 159ba2a19
16 Hexadecimal 2615d135
20 Vigesimal 9jdaa11
36 Base36 akf7sl

Cryptographic Hash Functions

md5 13a1defdb772f6eb0f40552ab28f5941
sha1 4091f03cc96f092d74c7a96c6a9ac9cd4012666c
sha256 2b4f49173f9f5bae337af9d0ff173cacd60d6008ee18b836b2879a476ae2659e
sha512 f74b10a667218185d3fb62d93218a60a7583179096bcaaab47825534514cbc7fda7ee32e7e5211d91ca2feadc1b51704d8c4576ae0d13487ffc7de78f189ad21
ripemd-160 b4cf36e46b18425a2b8c8bf5d58bc501b8a65a0b

638964021 as geometric shapes

Circle

Radius = n
Diameter 1277928042
Circumference 4014729348.5636
Area 1.2826338038925E+18

Sphere

Radius = n
Volume 1.0927424704075E+27
Surface area 5.1305352155698E+18
Circumference 4014729348.5636

Square

Length = n
Perimeter 2555856084
Area 408275020132488441
Diagonal 903631584.36665

Cube

Length = n
Surface area 2449650120794930646
Volume 2.6087304853771E+26
Space diagonal 1106718148.5805

Equilateral Triangle

Length = n
Perimeter 1916892063
Area 1.7678826958267E+17
Altitude 553359074.29025

Triangular Pyramid

Length = n
Surface area 1.7678826958267E+17
Volume 3.0744183608304E+25
Height 301210528.12222