21931389 (number)

21931389 is an odd 8-digits composite number following 21931388 and preceding 21931390. In scientific notation, it is written as 2.1931389 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 14599872 positive integers (up to 21931389) that are relatively prime to 21931389.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred thirty-one thousand three hundred eighty-nine

Notation

Scientific notation 2.1931389 × 10^7
Engineering notation 2.1931389 × 10^6

Prime Factorization of 21931389

Prime Factorization 3 × 3 × 2557 × 953

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7310463
Product of the distinct prime numbers

The prime factorization of 21931389 is 3 × 3 × 2557 × 953. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21931389)

Multiplication

n×y
n×2 43862778
n×3 65794167
n×4 87725556
n×5 109656945

Division

n÷y
n÷2 10965694.5
n÷3 7310463
n÷3 5482847.25
n÷5 4386277.8

Exponentiation

ny
n2 480985823469321
n3 1.0548687197991E+22
n4 2.3134736237846E+29
n5 5.073768998446E+36

Nth Root

y√n
2√n 4683.0960912627
3√n 279.91234075678
4√n 68.433150528546
5√n 29.39092317866

Divisors of 21931389

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 -21931388
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 21931389 can be divided by 12 positive divisors. The sum of these divisors (counting 21931389) is 1, the average is 0.083333333333333.

Base conversion 21931389

Base System Value
2 Binary 1010011101010010101111101
3 Ternary 1112021020012200
4 Quaternary 1103222111331
5 Quinary 21103301024
6 Senary 2102022113
8 Octal 123522575
10 Decimal 21931389
12 Duodecimal 7417939
16 Hexadecimal 14ea57d
20 Vigesimal 6h1899
36 Base36 d22d9

Cryptographic Hash Functions

md5 c58383aef6d72ce1bd5ca09b51f48403
sha1 5f09465097a64a66d44135346716547bab6ed5c9
sha256 7dacb2edcbf7703c9aef03c46a24b161db1f2567bcbde2a313851d68c445979f
sha512 07327422b7e7096a0b4fa0ccab898368a9dade8542a6cd8055e5625be0dc0f1bcd06b0873a628086ecede0eac396995b29eab25d77d5dbf636c49b3d9ac67236
ripemd-160 67b362dffc9ea5eca459c27ff646349e0e8d9e48

21931389 as geometric shapes

Circle

Radius = n
Diameter 43862778
Circumference 137798981.13084
Area 1.5110615294921E+15

Sphere

Radius = n
Volume 4.41862376083E+22
Surface area 6.0442461179682E+15
Circumference 137798981.13084

Square

Length = n
Perimeter 87725556
Area 480985823469321
Diagonal 31015667.76548

Cube

Length = n
Surface area 2885914940815926
Volume 1.0548687197991E+22
Space diagonal 37986280.028557

Equilateral Triangle

Length = n
Perimeter 65794167
Area 2.082729709923E+14
Altitude 18993140.014279

Triangular Pyramid

Length = n
Surface area 2.082729709923E+14
Volume 1.2431747083859E+21
Height 10338555.921827