129389721 (number)

129389721 is an odd 9-digits composite number following 129389720 and preceding 129389722. In scientific notation, it is written as 1.29389721 × 10^8. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 86259812 positive integers (up to 129389721) that are relatively prime to 129389721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29389721 × 10^8
Engineering notation 1.29389721 × 10^6

Prime Factorization of 129389721

Prime Factorization 3 × 43129907

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129389721
Product of the distinct prime numbers

The prime factorization of 129389721 is 3 × 43129907. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 10, 88, 49, 622, 21, 84, 6697, 84696, 1538, 513625, 605699, 9172878, 7481130, 15412309, 30590802, 253615730, 421448661, 9284450180, 3756444864

Basic calculations (n = 129389721)

Multiplication

n×y
n×2 258779442
n×3 388169163
n×4 517558884
n×5 646948605

Division

n÷y
n÷2 64694860.5
n÷3 43129907
n÷3 32347430.25
n÷5 25877944.2

Exponentiation

ny
n2 16741699900457841
n3 2.166203879186E+24
n4 2.8028451555699E+32
n5 3.6265935268539E+40

Nth Root

y√n
2√n 11374.960263667
3√n 505.78575321579
4√n 106.65345875154
5√n 41.916011928915

Divisors of 129389721

1, 3, 43129907, 129389721

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 -129389720
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 129389721 can be divided by 4 positive divisors. The sum of these divisors (counting 129389721) is 1, the average is 0.25.

Base conversion 129389721

Base System Value
2 Binary 111101101100101010010011001
3 Ternary 100000110200022220
4 Quaternary 13231211102121
5 Quinary 231110432341
6 Senary 20501134253
8 Octal 755452231
10 Decimal 129389721
12 Duodecimal 373ba389
16 Hexadecimal 7b65499
20 Vigesimal 208de61
36 Base36 2519qx

Cryptographic Hash Functions

md5 f1adbb3b9f071a290a2e740f63e32f36
sha1 8712dae696133acf9007265ee4bc92c2eec60476
sha256 ea0fad801f461b4718f3d31a3884df2d146ac6578de44f00a9b7ff6f248dbf72
sha512 740648bcaa5ce5a2cbc1aad56e0e4cd85e8c66809322e4345d2d0e8b35091de657a9ca797b1e854c0d302d77b7a1e07038b056cce8a3cdbe461e005ddb61de48
ripemd-160 b6b4a18997c48c113df7f502895e2e9007c1d292

129389721 as geometric shapes

Circle

Radius = n
Diameter 258779442
Circumference 812979593.88727
Area 5.2595601415883E+16

Sphere

Radius = n
Volume 9.0737735907045E+24
Surface area 2.1038240566353E+17
Circumference 812979593.88727

Square

Length = n
Perimeter 517558884
Area 16741699900457841
Diagonal 182984698.26987

Cube

Length = n
Surface area 100450199402747046
Volume 2.166203879186E+24
Space diagonal 224109570.74916

Equilateral Triangle

Length = n
Perimeter 388169163
Area 7.2493687081659E+15
Altitude 112054785.37458

Triangular Pyramid

Length = n
Surface area 7.2493687081659E+15
Volume 2.5528957540083E+23
Height 60994899.42329