21090911 (number)

21090911 is an odd 8-digits composite number following 21090910 and preceding 21090912. In scientific notation, it is written as 2.1090911 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 21056112 positive integers (up to 21090911) that are relatively prime to 21090911.

Interesting facts

Basic properties

Name

Name twenty-one million ninety thousand nine hundred eleven

Notation

Scientific notation 2.1090911 × 10^7
Engineering notation 2.1090911 × 10^6

Prime Factorization of 21090911

Prime Factorization 617 × 34183

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21090911
Product of the distinct prime numbers

The prime factorization of 21090911 is 617 × 34183. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21090911)

Multiplication

n×y
n×2 42181822
n×3 63272733
n×4 84363644
n×5 105454555

Division

n÷y
n÷2 10545455.5
n÷3 7030303.6666667
n÷3 5272727.75
n÷5 4218182.2

Exponentiation

ny
n2 444826526809921
n3 9.3817966873872E+21
n4 1.9787063895378E+29
n5 4.1732720356873E+36

Nth Root

y√n
2√n 4592.4841861459
3√n 276.289966031
4√n 67.767869865784
5√n 29.162118327265

Divisors of 21090911

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 -21090910
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 21090911 can be divided by 4 positive divisors. The sum of these divisors (counting 21090911) is 1, the average is 0.25.

Base conversion 21090911

Base System Value
2 Binary 1010000011101001001011111
3 Ternary 1110200112021212
4 Quaternary 1100131021133
5 Quinary 20344402121
6 Senary 2032015035
8 Octal 120351137
10 Decimal 21090911
12 Duodecimal 709147b
16 Hexadecimal 141d25f
20 Vigesimal 6bg75b
36 Base36 ck1un

Cryptographic Hash Functions

md5 55c9c4d24a9d9cf3386e95a837de9b3d
sha1 3c7430f60e1bb9ee6c4393e172204751c7038f43
sha256 ee743c197fd64cb097c6d517309029801db4a23f8c7e08c27646529b1054dccf
sha512 b24ecf9d37b8ccad112142e23036352a01cff90cabefe4b356accab4ddec3fc1cfec234798529200058b0c8c6bfb51e8e330ac5261c05b0748d29841687193be
ripemd-160 4579d420bc0ac78544f5cce1eb955c210d83f396

21090911 as geometric shapes

Circle

Radius = n
Diameter 42181822
Circumference 132518102.11023
Area 1.3974637487479E+15

Sphere

Radius = n
Volume 3.9298378067425E+22
Surface area 5.5898549949916E+15
Circumference 132518102.11023

Square

Length = n
Perimeter 84363644
Area 444826526809921
Diagonal 29827052.379004

Cube

Length = n
Surface area 2668959160859526
Volume 9.3817966873872E+21
Space diagonal 36530529.429913

Equilateral Triangle

Length = n
Perimeter 63272733
Area 1.926155362473E+14
Altitude 18265264.714957

Triangular Pyramid

Length = n
Surface area 1.926155362473E+14
Volume 1.1056553428942E+21
Height 9942350.7930013