20921972 (number)

20921972 is an even 8-digits composite number following 20921971 and preceding 20921973. In scientific notation, it is written as 2.0921972 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 10137600 positive integers (up to 20921972) that are relatively prime to 20921972.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921972 × 10^7
Engineering notation 2.0921972 × 10^6

Prime Factorization of 20921972

Prime Factorization 2 × 2 × 27101 × 193

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10460986
Product of the distinct prime numbers

The prime factorization of 20921972 is 2 × 2 × 27101 × 193. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 10, 16, 37, 656, 537, 6805, 2092, 22357, 68350, 27226, 747758, 4315913, 340531, 73854735, 43279131, 565576736, 786329389, 7485767067, 8996828569

Basic calculations (n = 20921972)

Multiplication

n×y
n×2 41843944
n×3 62765916
n×4 83687888
n×5 104609860

Division

n÷y
n÷2 10460986
n÷3 6973990.6666667
n÷3 5230493
n÷5 4184394.4

Exponentiation

ny
n2 437728912368784
n3 9.1581520481702E+21
n4 1.9160660072356E+29
n5 4.0087879353535E+36

Nth Root

y√n
2√n 4574.0542191802
3√n 275.55028984137
4√n 67.631754517979
5√n 29.115249983251

Divisors of 20921972

1, 2, 4, 193, 386, 772, 27101, 54202, 108404, 5230493, 10460986, 20921972

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 -20921971
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 20921972 can be divided by 12 positive divisors. The sum of these divisors (counting 20921972) is 1, the average is 0.083333333333333.

Base conversion 20921972

Base System Value
2 Binary 1001111110011111001110100
3 Ternary 1110100221112212
4 Quaternary 1033303321310
5 Quinary 20324000342
6 Senary 2024232552
8 Octal 117637164
10 Decimal 20921972
12 Duodecimal 700b758
16 Hexadecimal 13f3e74
20 Vigesimal 6af4ic
36 Base36 cgfhw

Cryptographic Hash Functions

md5 3211898513fea3dd6b8e86b69b09f13a
sha1 37e45ec1577043541057c364e92c5ebb687bd305
sha256 40b00186d3c39a1584cf8beff04c787c0a46b777301a579e5b3ad72cb0a990fd
sha512 2cbff9db201eeb957755f845a98b11229f372df0d3fefbbcd637a0aa6f9c48887e62688fd0b894f68a6e095e01cc848f1178f158bd08a87154ef4541ae75ea40
ripemd-160 8ce0dbcc8dcf761ee3c9df31698dd2cd8744c40c

20921972 as geometric shapes

Circle

Radius = n
Diameter 41843944
Circumference 131456627.06762
Area 1.3751659353616E+15

Sphere

Radius = n
Volume 3.836157759332E+22
Surface area 5.5006637414465E+15
Circumference 131456627.06762

Square

Length = n
Perimeter 83687888
Area 437728912368784
Diagonal 29588136.55399

Cube

Length = n
Surface area 2626373474212704
Volume 9.1581520481702E+21
Space diagonal 36237918.498533

Equilateral Triangle

Length = n
Perimeter 62765916
Area 1.8954217904115E+14
Altitude 18118959.249267

Triangular Pyramid

Length = n
Surface area 1.8954217904115E+14
Volume 1.0792985693998E+21
Height 9862712.1846634