20643485 (number)

20643485 is an odd 8-digits composite number following 20643484 and preceding 20643486. In scientific notation, it is written as 2.0643485 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 16514784 positive integers (up to 20643485) that are relatively prime to 20643485.

Interesting facts

Basic properties

Name

Name twenty million six hundred forty-three thousand four hundred eighty-five

Notation

Scientific notation 2.0643485 × 10^7
Engineering notation 2.0643485 × 10^6

Prime Factorization of 20643485

Prime Factorization 5 × 4128697

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20643485
Product of the distinct prime numbers

The prime factorization of 20643485 is 5 × 4128697. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20643485)

Multiplication

n×y
n×2 41286970
n×3 61930455
n×4 82573940
n×5 103217425

Division

n÷y
n÷2 10321742.5
n÷3 6881161.6666667
n÷3 5160871.25
n÷5 4128697

Exponentiation

ny
n2 426153472945225
n3 8.7972928264427E+21
n4 1.8160678250328E+29
n5 3.7489968905047E+36

Nth Root

y√n
2√n 4543.5102068775
3√n 274.3222317632
4√n 67.405565103169
5√n 29.037324850633

Divisors of 20643485

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20643484
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20643485 can be divided by 4 positive divisors. The sum of these divisors (counting 20643485) is 1, the average is 0.25.

Base conversion 20643485

Base System Value
2 Binary 1001110101111111010011101
3 Ternary 1102211210112112
4 Quaternary 1032233322131
5 Quinary 20241042420
6 Senary 2014243405
8 Octal 116577235
10 Decimal 20643485
12 Duodecimal 6ab6565
16 Hexadecimal 13afe9d
20 Vigesimal 6908e5
36 Base36 cagm5

Cryptographic Hash Functions

md5 eb276562190b7c4e11c8d49e47218c27
sha1 6a3f6cb53586985fc7cf0e72fc277d1bc1b3346b
sha256 4f50fdfc18be20f2cddd95c16dd61c07b9961a5583ee25ca09763bd6aaf08a15
sha512 1cb8cebfe34821a8d20be22376a3d333aa15957025ee08acb6827ec9a12545ed390cf2803a33cf44ed536004bacfaed6489e132971b31c5dc6582f129e4fb92d
ripemd-160 9bd9f4935e633cc4dcbe9b0b23489fe7359fea7c

20643485 as geometric shapes

Circle

Radius = n
Diameter 41286970
Circumference 129706841.64098
Area 1.3388006199065E+15

Sphere

Radius = n
Volume 3.6850014020041E+22
Surface area 5.355202479626E+15
Circumference 129706841.64098

Square

Length = n
Perimeter 82573940
Area 426153472945225
Diagonal 29194296.461646

Cube

Length = n
Surface area 2556920837671350
Volume 8.7972928264427E+21
Space diagonal 35755564.865286

Equilateral Triangle

Length = n
Perimeter 61930455
Area 1.8452986674076E+14
Altitude 17877782.432643

Triangular Pyramid

Length = n
Surface area 1.8452986674076E+14
Volume 1.0367709022769E+21
Height 9731432.1538819