20687856 (number)

20687856 is an even 8-digits composite number following 20687855 and preceding 20687857. In scientific notation, it is written as 2.0687856 × 10^7. The sum of its digits is 42. It has a total of 8 prime factors and 80 positive divisors. There are 5651712 positive integers (up to 20687856) that are relatively prime to 20687856.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-seven thousand eight hundred fifty-six

Notation

Scientific notation 2.0687856 × 10^7
Engineering notation 2.0687856 × 10^6

Prime Factorization of 20687856

Prime Factorization 2 × 2 × 2 × 2 × 3 × 7 × 23 × 2677

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2585982
Product of the distinct prime numbers

The prime factorization of 20687856 is 2 × 2 × 2 × 2 × 3 × 7 × 23 × 2677. Since it has a total of 8 prime factors.

Most popular turbo-numbers

8, 6, 82, 86, 147, 618, 2620, 262, 43424, 15052, 808179, 43843, 3080774, 9362205, 69846198, 3773319, 475442442, 966675427, 4473469183, 8883812393

Basic calculations (n = 20687856)

Multiplication

n×y
n×2 41375712
n×3 62063568
n×4 82751424
n×5 103439280

Division

n÷y
n÷2 10343928
n÷3 6895952
n÷3 5171964
n÷5 4137571.2

Exponentiation

ny
n2 427987385876736
n3 8.8541414088343E+21
n4 1.831732024696E+29
n5 3.78946083575E+36

Nth Root

y√n
2√n 4548.390484556
3√n 274.518633378
4√n 67.441756238669
5√n 29.049796667695

Divisors of 20687856

1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 56, 69, 84, 92, 112, 138, 161, 168, 184, 276, 322, 336, 368, 483, 552, 644, 966, 1104, 1288, 1932, 2576, 2677, 3864, 5354, 7728, 8031, 10708, 16062, 18739, 21416, 32124, 37478, 42832, 56217, 61571, 64248, 74956, 112434, 123142, 128496, 149912, 184713, 224868, 246284, 299824, 369426, 430997, 449736, 492568, 738852, 861994, 899472, 985136, 1292991, 1477704, 1723988, 2585982, 2955408, 3447976, 5171964, 6895952, 10343928, 20687856

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20687855
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20687856 can be divided by 80 positive divisors. The sum of these divisors (counting 20687856) is 1, the average is 0.0125.

Base conversion 20687856

Base System Value
2 Binary 1001110111010101111110000
3 Ternary 1102221001101220
4 Quaternary 1032322233300
5 Quinary 20244002411
6 Senary 2015225040
8 Octal 116725760
10 Decimal 20687856
12 Duodecimal 6b18180
16 Hexadecimal 13babf0
20 Vigesimal 695jcg
36 Base36 cbeuo

Cryptographic Hash Functions

md5 d82b2d308583c7f3709e4ca94399b932
sha1 fa36e565933c2774a3bd6c72d8b3a95c1e47d497
sha256 c4df2330c439d6cb21d39a6724a244bed196424c54899bb11dff4d5322b646c9
sha512 d2c95800a340a1f7fc4f3e4cb0cf9e2613b441a26b61070e759b565ecdbc6f3141d369f28b5db0a4bb36f1d9ca61635c7f7a078d4ba6ea3713c4401d60de92e3
ripemd-160 80d078d3f21774875c7dc688c85c8b919c4e3485

20687856 as geometric shapes

Circle

Radius = n
Diameter 41375712
Circumference 129985632.85625
Area 1.3445620272995E+15

Sphere

Radius = n
Volume 3.7088140805119E+22
Surface area 5.3782481091978E+15
Circumference 129985632.85625

Square

Length = n
Perimeter 82751424
Area 427987385876736
Diagonal 29257046.531622

Cube

Length = n
Surface area 2567924315260416
Volume 8.8541414088343E+21
Space diagonal 35832417.691669

Equilateral Triangle

Length = n
Perimeter 62063568
Area 1.8532397433427E+14
Altitude 17916208.845834

Triangular Pyramid

Length = n
Surface area 1.8532397433427E+14
Volume 1.0434705719619E+21
Height 9752348.8438739