20145729 (number)

20145729 is an odd 8-digits composite number following 20145728 and preceding 20145730. In scientific notation, it is written as 2.0145729 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 13401936 positive integers (up to 20145729) that are relatively prime to 20145729.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0145729 × 10^7
Engineering notation 2.0145729 × 10^6

Prime Factorization of 20145729

Prime Factorization 3 × 487 × 13789

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20145729
Product of the distinct prime numbers

The prime factorization of 20145729 is 3 × 487 × 13789. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20145729)

Multiplication

n×y
n×2 40291458
n×3 60437187
n×4 80582916
n×5 100728645

Division

n÷y
n÷2 10072864.5
n÷3 6715243
n÷3 5036432.25
n÷5 4029145.8

Exponentiation

ny
n2 405850396941441
n3 8.1761521113247E+21
n4 1.6471454469753E+29
n5 3.3182945798347E+36

Nth Root

y√n
2√n 4488.3993806256
3√n 272.09944910915
4√n 66.995517615924
5√n 28.895924740001

Divisors of 20145729

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 -20145728
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 20145729 can be divided by 8 positive divisors. The sum of these divisors (counting 20145729) is 1, the average is 0.125.

Base conversion 20145729

Base System Value
2 Binary 1001100110110011001000001
3 Ternary 1101220111202010
4 Quaternary 1030312121001
5 Quinary 20124130404
6 Senary 1555443133
8 Octal 114663101
10 Decimal 20145729
12 Duodecimal 68b64a9
16 Hexadecimal 1336641
20 Vigesimal 65i469
36 Base36 bzsjl

Cryptographic Hash Functions

md5 da121dd00370859c1cdc28e2e96d398a
sha1 31ea4a5bb198d1675c23009aa1dd34b2ce82c0b6
sha256 a7103f904af6d9d76d4c32f284d566ab871718097ce10b95efd4c91b9802eb42
sha512 bd419a2b38266713a2536dd1bced46cb4a20f653292bfca1a73ad3f15b881390e6198a6ed7bca9247f461e164a0c0349d53f534870742e6995f6f8c7e6a3ef6e
ripemd-160 b4888f3e1a336064cccee8b00a111f9add2ca613

20145729 as geometric shapes

Circle

Radius = n
Diameter 40291458
Circumference 126579348.45522
Area 1.2750166254877E+15

Sphere

Radius = n
Volume 3.424818587676E+22
Surface area 5.1000665019509E+15
Circumference 126579348.45522

Square

Length = n
Perimeter 80582916
Area 405850396941441
Diagonal 28490363.175693

Cube

Length = n
Surface area 2435102381648646
Volume 8.1761521113247E+21
Space diagonal 34893426.183514

Equilateral Triangle

Length = n
Perimeter 60437187
Area 1.7573837694364E+14
Altitude 17446713.091757

Triangular Pyramid

Length = n
Surface area 1.7573837694364E+14
Volume 9.635687669884E+20
Height 9496787.725231