20921920 (number)

20921920 is an even 8-digits composite number following 20921919 and preceding 20921921. In scientific notation, it is written as 2.0921920 × 10^7. The sum of its digits is 25. It has a total of 8 prime factors and 28 positive divisors. There are 8368640 positive integers (up to 20921920) that are relatively prime to 20921920.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921920 × 10^7
Engineering notation 2.0921920 × 10^6

Prime Factorization of 20921920

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 5 × 65381

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 653810
Product of the distinct prime numbers

The prime factorization of 20921920 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 65381. Since it has a total of 8 prime factors.

Most popular turbo-numbers

1, 4, 72, 91, 63, 70, 8658, 2736, 9354, 72902, 557215, 29751, 9502519, 7545722, 96807753, 4873390, 646009172, 663255266, 3734034569, 5006553340

Basic calculations (n = 20921920)

Multiplication

n×y
n×2 41843840
n×3 62765760
n×4 83687680
n×5 104609600

Division

n÷y
n÷2 10460960
n÷3 6973973.3333333
n÷3 5230480
n÷5 4184384

Exponentiation

ny
n2 437726736486400
n3 9.1580837626295E+21
n4 1.9160469583503E+29
n5 4.0087381178849E+36

Nth Root

y√n
2√n 4574.0485349414
3√n 275.55006155462
4√n 67.63171249452
5√n 29.115235510481

Divisors of 20921920

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65381, 130762, 261524, 326905, 523048, 653810, 1046096, 1307620, 2092192, 2615240, 4184384, 5230480, 10460960, 20921920

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921920 can be divided by 28 positive divisors. The sum of these divisors (counting 20921920) is 1, the average is 0.035714285714286.

Base conversion 20921920

Base System Value
2 Binary 1001111110011111001000000
3 Ternary 1110100221110221
4 Quaternary 1033303321000
5 Quinary 20324000140
6 Senary 2024232424
8 Octal 117637100
10 Decimal 20921920
12 Duodecimal 700b714
16 Hexadecimal 13f3e40
20 Vigesimal 6af4g0
36 Base36 cgfgg

Cryptographic Hash Functions

md5 4e926e3473c020f31234d82f95514d22
sha1 88e75918047814cdae1ce1cd6ab9db117917ca19
sha256 f5384ff6e402369214a053f9278599d57e41241c6ed3bb06b1a3be9ba695016b
sha512 8434f0b03280ba274d84dd76935e256291d5908d84debe58516d716375e5db54185ccd1aa20f1756685607459622b87e7cd2502e8e390adb8551aa4ced94678a
ripemd-160 5b5a8b00bcf6bd9335e021414930f7d0c5dcffcc

20921920 as geometric shapes

Circle

Radius = n
Diameter 41843840
Circumference 131456300.34199
Area 1.3751590996255E+15

Sphere

Radius = n
Volume 3.8361291559516E+22
Surface area 5.500636398502E+15
Circumference 131456300.34199

Square

Length = n
Perimeter 83687680
Area 437726736486400
Diagonal 29588063.014885

Cube

Length = n
Surface area 2626360418918400
Volume 9.1580837626295E+21
Space diagonal 36237828.431891

Equilateral Triangle

Length = n
Perimeter 62765760
Area 1.8954123685644E+14
Altitude 18118914.215946

Triangular Pyramid

Length = n
Surface area 1.8954123685644E+14
Volume 1.0792905218716E+21
Height 9862687.6716283