20856979 (number)

20856979 is an odd 8-digits composite number following 20856978 and preceding 20856980. In scientific notation, it is written as 2.0856979 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 17372160 positive integers (up to 20856979) that are relatively prime to 20856979.

Interesting facts

Basic properties

Name

Name twenty million eight hundred fifty-six thousand nine hundred seventy-nine

Notation

Scientific notation 2.0856979 × 10^7
Engineering notation 2.0856979 × 10^6

Prime Factorization of 20856979

Prime Factorization 13 × 11 × 157 × 929

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20856979
Product of the distinct prime numbers

The prime factorization of 20856979 is 13 × 11 × 157 × 929. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 6, 5, 29, 420, 677, 9247, 9544, 21106, 7261, 502622, 380672, 1660981, 4337330, 60699031, 86772437, 713678858, 819703077, 9308021690, 209199899

Basic calculations (n = 20856979)

Multiplication

n×y
n×2 41713958
n×3 62570937
n×4 83427916
n×5 104284895

Division

n÷y
n÷2 10428489.5
n÷3 6952326.3333333
n÷3 5214244.75
n÷5 4171395.8

Exponentiation

ny
n2 435013573006441
n3 9.0730689569103E+21
n4 1.8923680869983E+29
n5 3.9469081450794E+36

Nth Root

y√n
2√n 4566.9441643182
3√n 275.26466640928
4√n 67.579169603645
5√n 29.097138467276

Divisors of 20856979

1, 11, 13, 143, 157, 929, 1727, 2041, 10219, 12077, 22451, 132847, 145853, 1604383, 1896089, 20856979

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 -20856978
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 20856979 can be divided by 16 positive divisors. The sum of these divisors (counting 20856979) is 1, the average is 0.0625.

Base conversion 20856979

Base System Value
2 Binary 1001111100100000010010011
3 Ternary 1110020122101201
4 Quaternary 1033210002103
5 Quinary 20314410404
6 Senary 2023012031
8 Octal 117440223
10 Decimal 20856979
12 Duodecimal 6b9a017
16 Hexadecimal 13e4093
20 Vigesimal 6a728j
36 Base36 cf1cj

Cryptographic Hash Functions

md5 0e8222746afb11ba949277ccf11bf14f
sha1 e13d80bcbca766c93a542fbc944c632e13dd59ec
sha256 47c15b447c276e77dc2f2a871a7a1ac3b0ab3c2994d4d196a17c7ba54f079452
sha512 a59bec9f60c209c56e8f136b5e79a8e3ded1867b63f4c896f82835a0e04f1dec1632885a709c091b4cffff244b050aa21934247639f56b7835e7ec61e343280d
ripemd-160 10becb5ed0495919ce9f772bf5a28ae6f5fa1872

20856979 as geometric shapes

Circle

Radius = n
Diameter 41713958
Circumference 131048264.00495
Area 1.3666354451689E+15

Sphere

Radius = n
Volume 3.8005182374057E+22
Surface area 5.4665417806755E+15
Circumference 131048264.00495

Square

Length = n
Perimeter 83427916
Area 435013573006441
Diagonal 29496222.571931

Cube

Length = n
Surface area 2610081438038646
Volume 9.0730689569103E+21
Space diagonal 36125347.320397

Equilateral Triangle

Length = n
Perimeter 62570937
Area 1.8836640260731E+14
Altitude 18062673.660199

Triangular Pyramid

Length = n
Surface area 1.8836640260731E+14
Volume 1.0692714309341E+21
Height 9832074.1906436