20687938 (number)

20687938 is an even 8-digits composite number following 20687937 and preceding 20687939. In scientific notation, it is written as 2.0687938 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 10286640 positive integers (up to 20687938) that are relatively prime to 20687938.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-seven thousand nine hundred thirty-eight

Notation

Scientific notation 2.0687938 × 10^7
Engineering notation 2.0687938 × 10^6

Prime Factorization of 20687938

Prime Factorization 2 × 181 × 57149

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20687938
Product of the distinct prime numbers

The prime factorization of 20687938 is 2 × 181 × 57149. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 2, 87, 85, 600, 968, 5368, 6037, 22927, 69862, 271391, 734227, 9043469, 468840, 4417364, 34712964, 447515308, 760003473, 3227038962, 802540643

Basic calculations (n = 20687938)

Multiplication

n×y
n×2 41375876
n×3 62063814
n×4 82751752
n×5 103439690

Division

n÷y
n÷2 10343969
n÷3 6895979.3333333
n÷3 5171984.5
n÷5 4137587.6

Exponentiation

ny
n2 427990778691844
n3 8.8542466941486E+21
n4 1.8317610664525E+29
n5 3.7895359373583E+36

Nth Root

y√n
2√n 4548.3994987248
3√n 274.51899607868
4√n 67.441823067921
5√n 29.049819696466

Divisors of 20687938

1, 2, 181, 362, 57149, 114298, 10343969, 20687938

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20687937
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20687938 can be divided by 8 positive divisors. The sum of these divisors (counting 20687938) is 1, the average is 0.125.

Base conversion 20687938

Base System Value
2 Binary 1001110111010110001000010
3 Ternary 1102221001111221
4 Quaternary 1032322301002
5 Quinary 20244003223
6 Senary 2015225254
8 Octal 116726102
10 Decimal 20687938
12 Duodecimal 6b1822a
16 Hexadecimal 13bac42
20 Vigesimal 695jgi
36 Base36 cbewy

Cryptographic Hash Functions

md5 3ba53116f76f26a653ab6a21a23bab47
sha1 b1643f2ac50a46dcb1cba9941edeef01520a9521
sha256 de00169eb45f75d7596176e68d396ded750ddd2e6ecf34103bcdaab9c554154d
sha512 eb17d28282801cf734e53bc67db544e8187000f7951958315358a75bea7ae8bde01e1faec3f8534858fcbcda2f5e041fa5d5ae1a2b253885112810b45d490cbe
ripemd-160 86bb2a0f1b7888245e835d62231a36a720eac9c2

20687938 as geometric shapes

Circle

Radius = n
Diameter 41375876
Circumference 129986148.07744
Area 1.3445726861425E+15

Sphere

Radius = n
Volume 3.7088581823212E+22
Surface area 5.3782907445699E+15
Circumference 129986148.07744

Square

Length = n
Perimeter 82751752
Area 427990778691844
Diagonal 29257162.497134

Cube

Length = n
Surface area 2567944672151064
Volume 8.8542466941486E+21
Space diagonal 35832559.719835

Equilateral Triangle

Length = n
Perimeter 62063814
Area 1.8532544346631E+14
Altitude 17916279.859917

Triangular Pyramid

Length = n
Surface area 1.8532544346631E+14
Volume 1.0434829799552E+21
Height 9752387.4990446