20856728 (number)

20856728 is an even 8-digits composite number following 20856727 and preceding 20856729. In scientific notation, it is written as 2.0856728 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors. There are 10413568 positive integers (up to 20856728) that are relatively prime to 20856728.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0856728 × 10^7
Engineering notation 2.0856728 × 10^6

Prime Factorization of 20856728

Prime Factorization 2 × 2 × 2 × 947 × 2753

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5214182
Product of the distinct prime numbers

The prime factorization of 20856728 is 2 × 2 × 2 × 947 × 2753. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 10, 49, 100, 209, 471, 4553, 4879, 79518, 20559, 994200, 198452, 3506024, 539994, 33730039, 60362630, 552049479, 437897714, 4691924643, 2599695073

Basic calculations (n = 20856728)

Multiplication

n×y
n×2 41713456
n×3 62570184
n×4 83426912
n×5 104283640

Division

n÷y
n÷2 10428364
n÷3 6952242.6666667
n÷3 5214182
n÷5 4171345.6

Exponentiation

ny
n2 435003102865984
n3 9.0727413956318E+21
n4 1.8922769950303E+29
n5 3.9466706586005E+36

Nth Root

y√n
2√n 4566.9166841535
3√n 275.26356219522
4√n 67.578966285032
5√n 29.09706843396

Divisors of 20856728

1, 2, 4, 8, 947, 1894, 2753, 3788, 5506, 7576, 11012, 22024, 2607091, 5214182, 10428364, 20856728

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 -20856727
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 20856728 can be divided by 16 positive divisors. The sum of these divisors (counting 20856728) is 1, the average is 0.0625.

Base conversion 20856728

Base System Value
2 Binary 1001111100011111110011000
3 Ternary 1110020122001102
4 Quaternary 1033203332120
5 Quinary 20314403403
6 Senary 2023010532
8 Octal 117437630
10 Decimal 20856728
12 Duodecimal 6b99a48
16 Hexadecimal 13e3f98
20 Vigesimal 6a71g8
36 Base36 cf15k

Cryptographic Hash Functions

md5 3195e0ad843d2775eb94d0a50d1a9f96
sha1 9ec96fe96a625d5fce43b5a016835a4216606744
sha256 dad32e2fbe7d39420bb6017835acd5bd8d4f8f6c727ba3d0cd806771a0bf8d3a
sha512 aa46b5dc46051911565071b3c8cfbc4915990aee67b769fd605cfb597f7ebfce80ea99e9335a27dd59daf9bfe85df00e4c58f2fc392d1b31194e25f35ca32a4a
ripemd-160 eb1fe672311c23a93d1acca3fb5dfa205a227a4b

20856728 as geometric shapes

Circle

Radius = n
Diameter 41713456
Circumference 131046686.92544
Area 1.3666025522525E+15

Sphere

Radius = n
Volume 3.8003810288583E+22
Surface area 5.4664102090102E+15
Circumference 131046686.92544

Square

Length = n
Perimeter 83426912
Area 435003102865984
Diagonal 29495867.604327

Cube

Length = n
Surface area 2610018617195904
Volume 9.0727413956318E+21
Space diagonal 36124912.575644

Equilateral Triangle

Length = n
Perimeter 62570184
Area 1.883618689035E+14
Altitude 18062456.287822

Triangular Pyramid

Length = n
Surface area 1.883618689035E+14
Volume 1.0692328274672E+21
Height 9831955.8681089