20921755 (number)

20921755 is an odd 8-digits composite number following 20921754 and preceding 20921756. In scientific notation, it is written as 2.0921755 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 15529536 positive integers (up to 20921755) that are relatively prime to 20921755.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand seven hundred fifty-five

Notation

Scientific notation 2.0921755 × 10^7
Engineering notation 2.0921755 × 10^6

Prime Factorization of 20921755

Prime Factorization 5 × 67 × 19 × 19 × 173

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1101145
Product of the distinct prime numbers

The prime factorization of 20921755 is 5 × 67 × 19 × 19 × 173. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 3, 51, 56, 674, 601, 6039, 213, 84281, 97309, 926227, 317229, 8153536, 8171588, 57785624, 97499236, 638535915, 703308128, 9438034817, 1499600661

Basic calculations (n = 20921755)

Multiplication

n×y
n×2 41843510
n×3 62765265
n×4 83687020
n×5 104608775

Division

n÷y
n÷2 10460877.5
n÷3 6973918.3333333
n÷3 5230438.75
n÷5 4184351

Exponentiation

ny
n2 437719832280025
n3 9.1578670896038E+21
n4 1.9159865157125E+29
n5 4.0085800465041E+36

Nth Root

y√n
2√n 4574.0304983679
3√n 275.5493371807
4√n 67.631579150334
5√n 29.115189587076

Divisors of 20921755

1, 5, 19, 67, 95, 173, 335, 361, 865, 1273, 1805, 3287, 6365, 11591, 16435, 24187, 57955, 62453, 120935, 220229, 312265, 1101145, 4184351, 20921755

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921754
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921755 can be divided by 24 positive divisors. The sum of these divisors (counting 20921755) is 1, the average is 0.041666666666667.

Base conversion 20921755

Base System Value
2 Binary 1001111110011110110011011
3 Ternary 1110100221020211
4 Quaternary 1033303312123
5 Quinary 20323444010
6 Senary 2024231551
8 Octal 117636633
10 Decimal 20921755
12 Duodecimal 700b5b7
16 Hexadecimal 13f3d9b
20 Vigesimal 6af47f
36 Base36 cgfbv

Cryptographic Hash Functions

md5 ab614d4d72c65b2dedf9833960137cd0
sha1 f3163ab80447bcb10836b45fc3f3eb3d344c92c6
sha256 460994982bcfc8a08795283777c19ef79967b3beb014688412a05e1d6e68b1a0
sha512 ec30fbb530b5dee2d554ccec3a39bc679e0255bd28ae0b4761413f0ca47edc61134c50283606a72ca29dfd9edbd69c84782d83fedfbb0092ca837d852cd212a8
ripemd-160 4d9f252806553e9807d7c522b8300f55ed3e8f7b

20921755 as geometric shapes

Circle

Radius = n
Diameter 41843510
Circumference 131455263.61641
Area 1.3751374094215E+15

Sphere

Radius = n
Volume 3.8360383961668E+22
Surface area 5.5005496376859E+15
Circumference 131455263.61641

Square

Length = n
Perimeter 83687020
Area 437719832280025
Diagonal 29587829.669647

Cube

Length = n
Surface area 2626318993680150
Volume 9.1578670896038E+21
Space diagonal 36237542.643508

Equilateral Triangle

Length = n
Perimeter 62765265
Area 1.8953824724738E+14
Altitude 18118771.321754

Triangular Pyramid

Length = n
Surface area 1.8953824724738E+14
Volume 1.0792649867107E+21
Height 9862609.8898824