20921909 (number)

20921909 is an odd 8-digits composite number following 20921908 and preceding 20921910. In scientific notation, it is written as 2.0921909 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 19461312 positive integers (up to 20921909) that are relatively prime to 20921909.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921909 × 10^7
Engineering notation 2.0921909 × 10^6

Prime Factorization of 20921909

Prime Factorization 47 × 37 × 53 × 227

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921909
Product of the distinct prime numbers

The prime factorization of 20921909 is 47 × 37 × 53 × 227. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 8, 68, 14, 593, 237, 2103, 4368, 70579, 49300, 649682, 968080, 3331289, 8084546, 82335198, 6360421, 566227847, 502988739, 4433639082, 4405441416

Basic calculations (n = 20921909)

Multiplication

n×y
n×2 41843818
n×3 62765727
n×4 83687636
n×5 104609545

Division

n÷y
n÷2 10460954.5
n÷3 6973969.6666667
n÷3 5230477.25
n÷5 4184381.8

Exponentiation

ny
n2 437726276204281
n3 9.1580693176548E+21
n4 1.9160429287967E+29
n5 4.0087275796377E+36

Nth Root

y√n
2√n 4574.0473325054
3√n 275.55001326315
4√n 67.631703604932
5√n 29.115232448929

Divisors of 20921909

1, 37, 47, 53, 227, 1739, 1961, 2491, 8399, 10669, 12031, 92167, 394753, 445147, 565457, 20921909

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921908
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921909 can be divided by 16 positive divisors. The sum of these divisors (counting 20921909) is 1, the average is 0.0625.

Base conversion 20921909

Base System Value
2 Binary 1001111110011111000110101
3 Ternary 1110100221110112
4 Quaternary 1033303320311
5 Quinary 20324000114
6 Senary 2024232405
8 Octal 117637065
10 Decimal 20921909
12 Duodecimal 700b705
16 Hexadecimal 13f3e35
20 Vigesimal 6af4f9
36 Base36 cgfg5

Cryptographic Hash Functions

md5 2a4d193a6ed69d82f34905f8174f2cfa
sha1 3638f5f652e0976b578d27b5050ad294d1c395e0
sha256 773c39196932b415e8f90691e9b9a12d1c22e7be56572fa27fc0d7d95df3223d
sha512 6d080ffb37d6d423e87877eaae79cebba4384aadbfc5f45221dbd82faeb465f65c877b6cd09032a3f4f9ed4504e8591847d39f221e33959f28afde9538621d12
ripemd-160 f56a5d151eec313c633766beeabe48e028c1368e

20921909 as geometric shapes

Circle

Radius = n
Diameter 41843818
Circumference 131456231.22695
Area 1.3751576536066E+15

Sphere

Radius = n
Volume 3.8361231052547E+22
Surface area 5.5006306144263E+15
Circumference 131456231.22695

Square

Length = n
Perimeter 83687636
Area 437726276204281
Diagonal 29588047.458536

Cube

Length = n
Surface area 2626357657225686
Volume 9.1580693176548E+21
Space diagonal 36237809.379333

Equilateral Triangle

Length = n
Perimeter 62765727
Area 1.8954103754844E+14
Altitude 18118904.689666

Triangular Pyramid

Length = n
Surface area 1.8954103754844E+14
Volume 1.079288819515E+21
Height 9862682.4861786