20129785 (number)

20129785 is an odd 8-digits composite number following 20129784 and preceding 20129786. In scientific notation, it is written as 2.0129785 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 13989888 positive integers (up to 20129785) that are relatively prime to 20129785.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0129785 × 10^7
Engineering notation 2.0129785 × 10^6

Prime Factorization of 20129785

Prime Factorization 5 × 17 × 13 × 18217

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20129785
Product of the distinct prime numbers

The prime factorization of 20129785 is 5 × 17 × 13 × 18217. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 86, 71, 213, 400, 5414, 6822, 70180, 46770, 447372, 4136, 7629572, 1638373, 55202209, 32008595, 536964328, 222165775, 8027529696, 4830970229

Basic calculations (n = 20129785)

Multiplication

n×y
n×2 40259570
n×3 60389355
n×4 80519140
n×5 100648925

Division

n÷y
n÷2 10064892.5
n÷3 6709928.3333333
n÷3 5032446.25
n÷5 4025957

Exponentiation

ny
n2 405208244146225
n3 8.156754834891E+21
n4 1.6419372112407E+29
n5 3.3051843045774E+36

Nth Root

y√n
2√n 4486.622894784
3√n 272.02764731226
4√n 66.982258059758
5√n 28.891349452168

Divisors of 20129785

1, 5, 13, 17, 65, 85, 221, 1105, 18217, 91085, 236821, 309689, 1184105, 1548445, 4025957, 20129785

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 -20129784
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 20129785 can be divided by 16 positive divisors. The sum of these divisors (counting 20129785) is 1, the average is 0.0625.

Base conversion 20129785

Base System Value
2 Binary 1001100110010011111111001
3 Ternary 1101212200212121
4 Quaternary 1030302133321
5 Quinary 20123123120
6 Senary 1555241241
8 Octal 114623771
10 Decimal 20129785
12 Duodecimal 68a9221
16 Hexadecimal 13327f9
20 Vigesimal 65g495
36 Base36 bzg8p

Cryptographic Hash Functions

md5 fa212beaf33f87d67aec305f417f2f0e
sha1 2ada7e5cfc5791abf05871f66e301938774d6a29
sha256 a971929173a9935295a83f1b1762c4df8e27465e1715903c49f1163df8cbf0f4
sha512 18321b3ad69cb50478e2f9e1aaa6e5c669d10b2a34967030711e353bb7bf409ae451f0682c3d97f428a3587114370934a129a5bdd19dfc537e0e7c09d43de357
ripemd-160 21f4454a17e6adefc6f25c8609fab19c0505d868

20129785 as geometric shapes

Circle

Radius = n
Diameter 40259570
Circumference 126479169.34868
Area 1.2729992429838E+15

Sphere

Radius = n
Volume 3.4166934755236E+22
Surface area 5.0919969719352E+15
Circumference 126479169.34868

Square

Length = n
Perimeter 80519140
Area 405208244146225
Diagonal 28467814.954654

Cube

Length = n
Surface area 2431249464877350
Volume 8.156754834891E+21
Space diagonal 34865810.365438

Equilateral Triangle

Length = n
Perimeter 60389355
Area 1.7546031662676E+14
Altitude 17432905.182719

Triangular Pyramid

Length = n
Surface area 1.7546031662676E+14
Volume 9.6128277603793E+20
Height 9489271.6515515