21090915 (number)

21090915 is an odd 8-digits composite number following 21090914 and preceding 21090916. In scientific notation, it is written as 2.1090915 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 11248416 positive integers (up to 21090915) that are relatively prime to 21090915.

Interesting facts

Basic properties

Name

Name twenty-one million ninety thousand nine hundred fifteen

Notation

Scientific notation 2.1090915 × 10^7
Engineering notation 2.1090915 × 10^6

Prime Factorization of 21090915

Prime Factorization 3 × 15 × 3 × 156229

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7030305
Product of the distinct prime numbers

The prime factorization of 21090915 is 3 × 15 × 3 × 156229. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 61, 65, 226, 463, 5406, 7380, 88700, 17657, 620332, 71308, 9491813, 8326337, 21499933, 19527024, 380602760, 372059792, 1196088964, 1019171143

Basic calculations (n = 21090915)

Multiplication

n×y
n×2 42181830
n×3 63272745
n×4 84363660
n×5 105454575

Division

n÷y
n÷2 10545457.5
n÷3 7030305
n÷3 5272728.75
n÷5 4218183

Exponentiation

ny
n2 444826695537225
n3 9.3818020253065E+21
n4 1.9787078906257E+29
n5 4.1732759931015E+36

Nth Root

y√n
2√n 4592.48462164
3√n 276.2899834976
4√n 67.767873078916
5√n 29.162119433415

Divisors of 21090915

1, 3, 9, 15, 45, 135, 156229, 468687, 1406061, 2343435, 7030305, 21090915

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21090914
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21090915 can be divided by 12 positive divisors. The sum of these divisors (counting 21090915) is 1, the average is 0.083333333333333.

Base conversion 21090915

Base System Value
2 Binary 1010000011101001001100011
3 Ternary 1110200112022000
4 Quaternary 1100131021203
5 Quinary 20344402130
6 Senary 2032015043
8 Octal 120351143
10 Decimal 21090915
12 Duodecimal 7091483
16 Hexadecimal 141d263
20 Vigesimal 6bg75f
36 Base36 ck1ur

Cryptographic Hash Functions

md5 4ce8fd85c7b607a63b6dff62fb6ecb58
sha1 9b37de33c4b8a6867e84769839ea6aac8be096ff
sha256 3def7b4b3dc970d8633687cf205955f5476f2dfb2f60e1f4a3320b14005be56b
sha512 7b1f908b8b373c178659bac4050c7452600ed199ea1685e4a7a2694a9fce559fa886e2e6dc70a58dcaa825bb15d218d81d18331e97e80aec7a71829c65cfb311
ripemd-160 6f05ba4cad4545b2cdc30d46ce2131b3969d25f8

21090915 as geometric shapes

Circle

Radius = n
Diameter 42181830
Circumference 132518127.24297
Area 1.3974642788204E+15

Sphere

Radius = n
Volume 3.9298400426849E+22
Surface area 5.5898571152815E+15
Circumference 132518127.24297

Square

Length = n
Perimeter 84363660
Area 444826695537225
Diagonal 29827058.035858

Cube

Length = n
Surface area 2668960173223350
Volume 9.3818020253065E+21
Space diagonal 36530536.358117

Equilateral Triangle

Length = n
Perimeter 63272745
Area 1.9261560930836E+14
Altitude 18265268.179058

Triangular Pyramid

Length = n
Surface area 1.9261560930836E+14
Volume 1.105655971974E+21
Height 9942352.6786194