20921439 (number)

20921439 is an odd 8-digits composite number following 20921438 and preceding 20921440. In scientific notation, it is written as 2.0921439 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors. There are 10377600 positive integers (up to 20921439) that are relatively prime to 20921439.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand four hundred thirty-nine

Notation

Scientific notation 2.0921439 × 10^7
Engineering notation 2.0921439 × 10^6

Prime Factorization of 20921439

Prime Factorization 231 × 47 × 41 × 47

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 445137
Product of the distinct prime numbers

The prime factorization of 20921439 is 231 × 47 × 41 × 47. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 23, 24, 387, 150, 3559, 7743, 70039, 88797, 261797, 956316, 1275143, 8613011, 57833617, 41450238, 79094637, 824313117, 4267073851, 4825568751

Basic calculations (n = 20921439)

Multiplication

n×y
n×2 41842878
n×3 62764317
n×4 83685756
n×5 104607195

Division

n÷y
n÷2 10460719.5
n÷3 6973813
n÷3 5230359.75
n÷5 4184287.8

Exponentiation

ny
n2 437706609830721
n3 9.1574521374702E+21
n4 1.915870762895E+29
n5 4.0082773297792E+36

Nth Root

y√n
2√n 4573.9959553983
3√n 275.54794988426
4√n 67.631323773813
5√n 29.115101635989

Divisors of 20921439

1, 41, 47, 231, 1927, 2209, 9471, 10857, 90569, 445137, 510279, 20921439

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 -20921438
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 20921439 can be divided by 12 positive divisors. The sum of these divisors (counting 20921439) is 1, the average is 0.083333333333333.

Base conversion 20921439

Base System Value
2 Binary 1001111110011110001011111
3 Ternary 1110100220211010
4 Quaternary 1033303301133
5 Quinary 20323441224
6 Senary 2024230303
8 Octal 117636137
10 Decimal 20921439
12 Duodecimal 700b393
16 Hexadecimal 13f3c5f
20 Vigesimal 6af3bj
36 Base36 cgf33

Cryptographic Hash Functions

md5 6b208e2834322e9ba0b558d873592837
sha1 d9c1ad155e01e574200a3fe185eb7f34769faed6
sha256 cc9eb960b1460fa8c06a934fef0a7480e2fe725ee3526506d56a9494ecd5e047
sha512 e4ca6833f0c09423bcf70a7df26281850c6f06bdf5e07d20620354d337bba1d78dac9adbd3b763765c09542062f96f4dc8b5ee5f6ce1899a20f247997b08c800
ripemd-160 da5aac74f2fac17536c96996e51adab395cf3f1e

20921439 as geometric shapes

Circle

Radius = n
Diameter 41842878
Circumference 131453278.12985
Area 1.3750958698719E+15

Sphere

Radius = n
Volume 3.8358645814235E+22
Surface area 5.5003834794875E+15
Circumference 131453278.12985

Square

Length = n
Perimeter 83685756
Area 437706609830721
Diagonal 29587382.778161

Cube

Length = n
Surface area 2626239658984326
Volume 9.1574521374702E+21
Space diagonal 36236995.315453

Equilateral Triangle

Length = n
Perimeter 62764317
Area 1.8953252175888E+14
Altitude 18118497.657727

Triangular Pyramid

Length = n
Surface area 1.8953252175888E+14
Volume 1.0792160841327E+21
Height 9862460.9260538