20129721 (number)

20129721 is an odd 8-digits composite number following 20129720 and preceding 20129722. In scientific notation, it is written as 2.0129721 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 12 positive divisors. There are 12712824 positive integers (up to 20129721) that are relatively prime to 20129721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0129721 × 10^7
Engineering notation 2.0129721 × 10^6

Prime Factorization of 20129721

Prime Factorization 3 × 19 × 19 × 18587

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1059459
Product of the distinct prime numbers

The prime factorization of 20129721 is 3 × 19 × 19 × 18587. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 2, 61, 579, 354, 3694, 2489, 15558, 17006, 80137, 333551, 4143720, 1850224, 84035638, 68643803, 911648218, 625414670, 7581766251, 6111688320

Basic calculations (n = 20129721)

Multiplication

n×y
n×2 40259442
n×3 60389163
n×4 80518884
n×5 100648605

Division

n÷y
n÷2 10064860.5
n÷3 6709907
n÷3 5032430.25
n÷5 4025944.2

Exponentiation

ny
n2 405205667537841
n3 8.1566770351555E+21
n4 1.6419163300479E+29
n5 3.3051317629208E+36

Nth Root

y√n
2√n 4486.6157624651
3√n 272.02735901993
4√n 66.982204819378
5√n 28.891331080896

Divisors of 20129721

1, 3, 19, 57, 361, 1083, 18587, 55761, 353153, 1059459, 6709907, 20129721

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 -20129720
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 20129721 can be divided by 12 positive divisors. The sum of these divisors (counting 20129721) is 1, the average is 0.083333333333333.

Base conversion 20129721

Base System Value
2 Binary 1001100110010011110111001
3 Ternary 1101212200210020
4 Quaternary 1030302132321
5 Quinary 20123122341
6 Senary 1555241053
8 Octal 114623671
10 Decimal 20129721
12 Duodecimal 68a9189
16 Hexadecimal 13327b9
20 Vigesimal 65g461
36 Base36 bzg6x

Cryptographic Hash Functions

md5 2e05525e6adc34f3bc584d90e2fcc546
sha1 67b4e3a19d133553deabbc205e1097dc8a21175d
sha256 4924ecc871eba85c7f0d5f17b8630b32629fbc3138eb041b14998aaad4797dff
sha512 3e241182a1c5342ae48906ecf64d0cf04cfb58c5a510ad15279594a0f797f8a29e9c14dcfaa01d302ca76fbbbe95e1ddd29ba1592ea2ef73bdfe3e00319f2d23
ripemd-160 0921d98cfc73e0deec6c879bba5682b96f0618cb

20129721 as geometric shapes

Circle

Radius = n
Diameter 40259442
Circumference 126478767.22482
Area 1.2729911483298E+15

Sphere

Radius = n
Volume 3.4166608868465E+22
Surface area 5.0919645933193E+15
Circumference 126478767.22482

Square

Length = n
Perimeter 80518884
Area 405205667537841
Diagonal 28467724.444987

Cube

Length = n
Surface area 2431234005227046
Volume 8.1566770351555E+21
Space diagonal 34865699.514186

Equilateral Triangle

Length = n
Perimeter 60389163
Area 1.754592009226E+14
Altitude 17432849.757093

Triangular Pyramid

Length = n
Surface area 1.754592009226E+14
Volume 9.6127360725117E+20
Height 9489241.4816622