20646985 (number)

20646985 is an odd 8-digits composite number following 20646984 and preceding 20646986. In scientific notation, it is written as 2.0646985 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 32 positive divisors. There are 14784000 positive integers (up to 20646985) that are relatively prime to 20646985.

Interesting facts

Basic properties

Name

Name twenty million six hundred forty-six thousand nine hundred eighty-five

Notation

Scientific notation 2.0646985 × 10^7
Engineering notation 2.0646985 × 10^6

Prime Factorization of 20646985

Prime Factorization 5 × 41 × 29 × 23 × 151

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20646985
Product of the distinct prime numbers

The prime factorization of 20646985 is 5 × 41 × 29 × 23 × 151. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 13, 30, 832, 760, 8733, 2422, 78659, 65436, 104970, 714353, 1345247, 2456164, 80831481, 74249009, 514818621, 903545181, 2246223449, 3905172993

Basic calculations (n = 20646985)

Multiplication

n×y
n×2 41293970
n×3 61940955
n×4 82587940
n×5 103234925

Division

n÷y
n÷2 10323492.5
n÷3 6882328.3333333
n÷3 5161746.25
n÷5 4129397

Exponentiation

ny
n2 426297989590225
n3 8.8017681965995E+21
n4 1.8172997592867E+29
n5 3.7521760870496E+36

Nth Root

y√n
2√n 4543.8953553091
3√n 274.33773420952
4√n 67.408421990944
5√n 29.038309410607

Divisors of 20646985

1, 5, 23, 29, 41, 115, 145, 151, 205, 667, 755, 943, 1189, 3335, 3473, 4379, 4715, 5945, 6191, 17365, 21895, 27347, 30955, 100717, 136735, 142393, 179539, 503585, 711965, 897695, 4129397, 20646985

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20646984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20646985 can be divided by 32 positive divisors. The sum of these divisors (counting 20646985) is 1, the average is 0.03125.

Base conversion 20646985

Base System Value
2 Binary 1001110110000110001001001
3 Ternary 1102211222100011
4 Quaternary 1032300301021
5 Quinary 20241200420
6 Senary 2014311521
8 Octal 116606111
10 Decimal 20646985
12 Duodecimal 6ab85a1
16 Hexadecimal 13b0c49
20 Vigesimal 690h95
36 Base36 cajbd

Cryptographic Hash Functions

md5 0df9215a4d5c92f7ec9cb017e56f103c
sha1 ec9ca661085799b735d8ee0ca6b28d7739627663
sha256 c8a0f30820fbf8113d181976e19c87c037def5e03787b44d6b5cf5df69a17e4f
sha512 24f7bd70d714d927d5c9b53b435f87df0cad01778b1f632d55e265c8dbeebfd0145e90fda93de788949d7bc44140fc7efd32606d9965e9d4dd0ea9515bbe6972
ripemd-160 b08bd807383e9a4d618ccade6fd7bf5a56caed74

20646985 as geometric shapes

Circle

Radius = n
Diameter 41293970
Circumference 129728832.78956
Area 1.3392546323367E+15

Sphere

Radius = n
Volume 3.6868760406716E+22
Surface area 5.357018529347E+15
Circumference 129728832.78956

Square

Length = n
Perimeter 82587940
Area 426297989590225
Diagonal 29199246.209114

Cube

Length = n
Surface area 2557787937541350
Volume 8.8017681965995E+21
Space diagonal 35761627.043112

Equilateral Triangle

Length = n
Perimeter 61940955
Area 1.8459244428368E+14
Altitude 17880813.521556

Triangular Pyramid

Length = n
Surface area 1.8459244428368E+14
Volume 1.0372983297079E+21
Height 9733082.0697046