21000644 (number)

21000644 is an even 8-digits composite number following 21000643 and preceding 21000645. In scientific notation, it is written as 2.1000644 × 10^7. The sum of its digits is 17. It has a total of 5 prime factors and 24 positive divisors. There are 8470656 positive integers (up to 21000644) that are relatively prime to 21000644.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred forty-four

Notation

Scientific notation 2.1000644 × 10^7
Engineering notation 2.1000644 × 10^6

Prime Factorization of 21000644

Prime Factorization 2 × 2 × 7 × 17 × 44119

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10500322
Product of the distinct prime numbers

The prime factorization of 21000644 is 2 × 2 × 7 × 17 × 44119. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 10, 56, 2, 202, 656, 2858, 8966, 29300, 630, 335169, 379892, 6743660, 8526284, 79114598, 63328435, 978470238, 665977637, 7130940968, 1288183108

Basic calculations (n = 21000644)

Multiplication

n×y
n×2 42001288
n×3 63001932
n×4 84002576
n×5 105003220

Division

n÷y
n÷2 10500322
n÷3 7000214.6666667
n÷3 5250161
n÷5 4200128.8

Exponentiation

ny
n2 441027048414736
n3 9.2618520381286E+21
n4 1.9450485743341E+29
n5 4.0847272672299E+36

Nth Root

y√n
2√n 4582.6459605778
3√n 275.89523784289
4√n 67.695243264042
5√n 29.137113290102

Divisors of 21000644

1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44119, 88238, 176476, 308833, 617666, 750023, 1235332, 1500046, 3000092, 5250161, 10500322, 21000644

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000643
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000644 can be divided by 24 positive divisors. The sum of these divisors (counting 21000644) is 1, the average is 0.041666666666667.

Base conversion 21000644

Base System Value
2 Binary 1010000000111000111000100
3 Ternary 1110111221110122
4 Quaternary 1100013013010
5 Quinary 20334010034
6 Senary 2030041112
8 Octal 120070704
10 Decimal 21000644
12 Duodecimal 7049198
16 Hexadecimal 14071c4
20 Vigesimal 6b51c4
36 Base36 ci478

Cryptographic Hash Functions

md5 4867a212a640d22d3fd50dcf68c5c44c
sha1 0d7dfc825dbbde3756d81c2a66c1ca1df3e3db51
sha256 3e388024b25354fa1e29e28921fe975026d97bb1da8b201517e89af69a5d76c6
sha512 23d096b9b1b72766f2cec9a7f6c5042125068a8b2e71ca1b13ea916c007ac462f9aeb16c9c5b56036c538f53f7fdd3797193c9eb54b9201de45cd5db717d7c79
ripemd-160 815926bcfab06e848e4596b5ac247380b0155dd4

21000644 as geometric shapes

Circle

Radius = n
Diameter 42001288
Circumference 131950937.82211
Area 1.3855273353341E+15

Sphere

Radius = n
Volume 3.8795955095494E+22
Surface area 5.5421093413365E+15
Circumference 131950937.82211

Square

Length = n
Perimeter 84002576
Area 441027048414736
Diagonal 29699395.563369

Cube

Length = n
Surface area 2646162290488416
Volume 9.2618520381286E+21
Space diagonal 36374182.399666

Equilateral Triangle

Length = n
Perimeter 63001932
Area 1.9097031384162E+14
Altitude 18187091.199833

Triangular Pyramid

Length = n
Surface area 1.9097031384162E+14
Volume 1.0915197304179E+21
Height 9899798.5211231