20729891 (number)

20729891 is an odd 8-digits composite number following 20729890 and preceding 20729892. In scientific notation, it is written as 2.0729891 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 16398144 positive integers (up to 20729891) that are relatively prime to 20729891.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0729891 × 10^7
Engineering notation 2.0729891 × 10^6

Prime Factorization of 20729891

Prime Factorization 7 × 13 × 49 × 4649

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20729891
Product of the distinct prime numbers

The prime factorization of 20729891 is 7 × 13 × 49 × 4649. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 84, 55, 430, 200, 1576, 6078, 22393, 35035, 529364, 867344, 3150966, 5467678, 51463290, 5121393, 417530530, 573232809, 3526310004, 809235302

Basic calculations (n = 20729891)

Multiplication

n×y
n×2 41459782
n×3 62189673
n×4 82919564
n×5 103649455

Division

n÷y
n÷2 10364945.5
n÷3 6909963.6666667
n÷3 5182472.75
n÷5 4145978.2

Exponentiation

ny
n2 429728380871881
n3 8.9082224950806E+21
n4 1.8466648132677E+29
n5 3.8281160292574E+36

Nth Root

y√n
2√n 4553.0090050427
3√n 274.70443616744
4√n 67.475988359139
5√n 29.061592157365

Divisors of 20729891

1, 7, 13, 49, 91, 343, 637, 4459, 4649, 32543, 60437, 227801, 423059, 1594607, 2961413, 20729891

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 -20729890
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 20729891 can be divided by 16 positive divisors. The sum of these divisors (counting 20729891) is 1, the average is 0.0625.

Base conversion 20729891

Base System Value
2 Binary 1001111000101000000100011
3 Ternary 1110000012001202
4 Quaternary 1033011000203
5 Quinary 20301324031
6 Senary 2020151415
8 Octal 117050043
10 Decimal 20729891
12 Duodecimal 6b3856b
16 Hexadecimal 13c5023
20 Vigesimal 69b4eb
36 Base36 ccbab

Cryptographic Hash Functions

md5 a99c78b30d2cd53982d42742f520b66d
sha1 71b457267882d490cd4bb88cce568998bdc2809c
sha256 6153da6f07281089c414b112c4d90a4e350d6a0375ceeeb4ab4e521aae4a201d
sha512 70d1cdbc6345a6e748af12d4505e764c92c2ad18f5a8219788b4cfc11b5fe52a413a3b5a9eeab1aec624fd57c9892f3dd46d72b88e79cc7ff7b043ad1a0af50b
ripemd-160 a79eb2675be54fa6b988aa5b9cb7830d6c4183dd

20729891 as geometric shapes

Circle

Radius = n
Diameter 41459782
Circumference 130249746.55063
Area 1.3500315243861E+15

Sphere

Radius = n
Volume 3.7314675129451E+22
Surface area 5.4001260975446E+15
Circumference 130249746.55063

Square

Length = n
Perimeter 82919564
Area 429728380871881
Diagonal 29316492.998716

Cube

Length = n
Surface area 2578370285231286
Volume 8.9082224950806E+21
Space diagonal 35905224.447365

Equilateral Triangle

Length = n
Perimeter 62189673
Area 1.860778472811E+14
Altitude 17952612.223682

Triangular Pyramid

Length = n
Surface area 1.860778472811E+14
Volume 1.0498440890983E+21
Height 9772164.3329053