20688745 (number)

20688745 is an odd 8-digits composite number following 20688744 and preceding 20688746. In scientific notation, it is written as 2.0688745 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 11612160 positive integers (up to 20688745) that are relatively prime to 20688745.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-eight thousand seven hundred forty-five

Notation

Scientific notation 2.0688745 × 10^7
Engineering notation 2.0688745 × 10^6

Prime Factorization of 20688745

Prime Factorization 1595 × 7 × 17 × 109

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20688745
Product of the distinct prime numbers

The prime factorization of 20688745 is 1595 × 7 × 17 × 109. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 7, 99, 73, 360, 772, 7560, 6325, 94267, 76348, 610623, 493399, 9128527, 2068400, 28369781, 54056761, 817084447, 387520108, 9623013026, 692517359

Basic calculations (n = 20688745)

Multiplication

n×y
n×2 41377490
n×3 62066235
n×4 82754980
n×5 103443725

Division

n÷y
n÷2 10344372.5
n÷3 6896248.3333333
n÷3 5172186.25
n÷5 4137749

Exponentiation

ny
n2 428024169675025
n3 8.8552829002433E+21
n4 1.8320468982599E+29
n5 3.7902751106141E+36

Nth Root

y√n
2√n 4548.4882103838
3√n 274.522565533
4√n 67.442480754964
5√n 29.050046329384

Divisors of 20688745

1, 7, 17, 109, 119, 763, 1595, 1853, 11165, 12971, 27115, 173855, 189805, 1216985, 2955535, 20688745

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 -20688744
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 20688745 can be divided by 16 positive divisors. The sum of these divisors (counting 20688745) is 1, the average is 0.0625.

Base conversion 20688745

Base System Value
2 Binary 1001110111010111101101001
3 Ternary 1102221002121211
4 Quaternary 1032322331221
5 Quinary 20244014440
6 Senary 2015233121
8 Octal 116727551
10 Decimal 20688745
12 Duodecimal 6b187a1
16 Hexadecimal 13baf69
20 Vigesimal 6961h5
36 Base36 cbfjd

Cryptographic Hash Functions

md5 a153d2f9d2f45c38d0b6fd3034fb37bc
sha1 10b8ae7fe0c2ee1f869024d8516e0abea1b31495
sha256 e4ca46c8493b959d288e276d03b1816d30a7d986abd34eaa5bf1a545c3daffcd
sha512 bfcc9998a71640b35d8f6758d76ba0a1d133ad46abafb2bfb1f07c1a997bb72ce567dc3ade9ff83da49ee2701f4d1935622f62a8dd8a01bf220f34cc8592c560
ripemd-160 09110a781c55bb0b562ef4a376a69573909939c9

20688745 as geometric shapes

Circle

Radius = n
Diameter 41377490
Circumference 129991218.60799
Area 1.3446775870099E+15

Sphere

Radius = n
Volume 3.7092922273152E+22
Surface area 5.3787103480397E+15
Circumference 129991218.60799

Square

Length = n
Perimeter 82754980
Area 428024169675025
Diagonal 29258303.767479

Cube

Length = n
Surface area 2568145018050150
Volume 8.8552829002433E+21
Space diagonal 35833957.484837

Equilateral Triangle

Length = n
Perimeter 62066235
Area 1.8533990218616E+14
Altitude 17916978.742418

Triangular Pyramid

Length = n
Surface area 1.8533990218616E+14
Volume 1.0436050980146E+21
Height 9752767.9224929