21720912 (number)

21720912 is an even 8-digits composite number following 21720911 and preceding 21720913. In scientific notation, it is written as 2.1720912 × 10^7. The sum of its digits is 24. It has a total of 6 prime factors and 20 positive divisors. There are 7240288 positive integers (up to 21720912) that are relatively prime to 21720912.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred twenty thousand nine hundred twelve

Notation

Scientific notation 2.1720912 × 10^7
Engineering notation 2.1720912 × 10^6

Prime Factorization of 21720912

Prime Factorization 2 × 2 × 2 × 2 × 3 × 452519

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2715114
Product of the distinct prime numbers

The prime factorization of 21720912 is 2 × 2 × 2 × 2 × 3 × 452519. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 4, 57, 75, 421, 935, 5595, 6070, 44602, 17886, 634311, 986289, 4538540, 4755202, 32159572, 81541590, 567464755, 157370262, 2780702174, 2024013615

Basic calculations (n = 21720912)

Multiplication

n×y
n×2 43441824
n×3 65162736
n×4 86883648
n×5 108604560

Division

n÷y
n÷2 10860456
n÷3 7240304
n÷3 5430228
n÷5 4344182.4

Exponentiation

ny
n2 471798018111744
n3 1.024788323318E+22
n4 2.2259336989417E+29
n5 4.8349309992547E+36

Nth Root

y√n
2√n 4660.5699222305
3√n 279.01401504602
4√n 68.268366922247
5√n 29.334292033016

Divisors of 21720912

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 452519, 905038, 1357557, 1810076, 2715114, 3620152, 5430228, 7240304, 10860456, 21720912

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21720911
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21720912 can be divided by 20 positive divisors. The sum of these divisors (counting 21720912) is 1, the average is 0.05.

Base conversion 21720912

Base System Value
2 Binary 1010010110110111101010000
3 Ternary 1111212112111020
4 Quaternary 1102312331100
5 Quinary 21030032122
6 Senary 2053315440
8 Octal 122667520
10 Decimal 21720912
12 Duodecimal 7335b80
16 Hexadecimal 14b6f50
20 Vigesimal 6ff25c
36 Base36 cxjyo

Cryptographic Hash Functions

md5 b4c451bf2658f44c8cc4a98a8fd6e6d3
sha1 cfcf4384f64b68a651dcd9b001c61f551731db23
sha256 c71b5c964aefe0f98f2d6150863ee39af735e060b3f004203a254ce3d7d626d1
sha512 3faa4f05fecedc0865ff8a3f267ad30a215e01a79eaf2fcdb7b7b0d54f25678d2e844b81b2e7770b8ab0bb08f1585ef00cc5854826dbb62ede4648e23e40a15d
ripemd-160 078a77e91c109c6ac29ddeb580e2e2054bf1625c

21720912 as geometric shapes

Circle

Radius = n
Diameter 43441824
Circumference 136476515.13694
Area 1.4821971876781E+15

Sphere

Radius = n
Volume 4.2926232906937E+22
Surface area 5.9287887507123E+15
Circumference 136476515.13694

Square

Length = n
Perimeter 86883648
Area 471798018111744
Diagonal 30718008.337513

Cube

Length = n
Surface area 2830788108670464
Volume 1.024788323318E+22
Space diagonal 37621723.170733

Equilateral Triangle

Length = n
Perimeter 65162736
Area 2.0429453456996E+14
Altitude 18810861.585366

Triangular Pyramid

Length = n
Surface area 2.0429453456996E+14
Volume 1.2077246211649E+21
Height 10239336.112504