20145731 (number)

20145731 is an odd 8-digits composite number following 20145730 and preceding 20145732. In scientific notation, it is written as 2.0145731 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 18903168 positive integers (up to 20145731) that are relatively prime to 20145731.

Interesting facts

Basic properties

Name

Name twenty million one hundred forty-five thousand seven hundred thirty-one

Notation

Scientific notation 2.0145731 × 10^7
Engineering notation 2.0145731 × 10^6

Prime Factorization of 20145731

Prime Factorization 17 × 367 × 3229

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20145731
Product of the distinct prime numbers

The prime factorization of 20145731 is 17 × 367 × 3229. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20145731)

Multiplication

n×y
n×2 40291462
n×3 60437193
n×4 80582924
n×5 100728655

Division

n÷y
n÷2 10072865.5
n÷3 6715243.6666667
n÷3 5036432.75
n÷5 4029146.2

Exponentiation

ny
n2 405850477524361
n3 8.1761545464273E+21
n4 1.6471461010675E+29
n5 3.3182962269805E+36

Nth Root

y√n
2√n 4488.3996034221
3√n 272.09945811352
4√n 66.995519278696
5√n 28.895925313739

Divisors of 20145731

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20145730
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20145731 can be divided by 8 positive divisors. The sum of these divisors (counting 20145731) is 1, the average is 0.125.

Base conversion 20145731

Base System Value
2 Binary 1001100110110011001000011
3 Ternary 1101220111202012
4 Quaternary 1030312121003
5 Quinary 20124130411
6 Senary 1555443135
8 Octal 114663103
10 Decimal 20145731
12 Duodecimal 68b64ab
16 Hexadecimal 1336643
20 Vigesimal 65i46b
36 Base36 bzsjn

Cryptographic Hash Functions

md5 ff36b79f770a231f5e7516b0bb9ed95d
sha1 eb38f9349c12614d7e0ae613c74858bf3fcd63eb
sha256 711f213297f4c1b1ff951efc7be9e2798c6e653023552b21a4896aab9be4e10b
sha512 53ec6b206987a925577f86e44fe788e0b7bbc20e8a7462884a8743314ba4ab8be83d00b651b6dc152586208aa77c29b47f309bbd3e48661ec89608c493656e1d
ripemd-160 0d88b99762c6ee5ccc058dde0f68d21b9355b5d6

20145731 as geometric shapes

Circle

Radius = n
Diameter 40291462
Circumference 126579361.02159
Area 1.2750168786464E+15

Sphere

Radius = n
Volume 3.4248196076894E+22
Surface area 5.1000675145858E+15
Circumference 126579361.02159

Square

Length = n
Perimeter 80582924
Area 405850477524361
Diagonal 28490366.00412

Cube

Length = n
Surface area 2435102865146166
Volume 8.1761545464273E+21
Space diagonal 34893429.647615

Equilateral Triangle

Length = n
Perimeter 60437193
Area 1.7573841183707E+14
Altitude 17446714.823808

Triangular Pyramid

Length = n
Surface area 1.7573841183707E+14
Volume 9.63569053968E+20
Height 9496788.66804