129856821 (number)

129856821 is an odd 9-digits composite number following 129856820 and preceding 129856822. In scientific notation, it is written as 1.29856821 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 86092560 positive integers (up to 129856821) that are relatively prime to 129856821.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million eight hundred fifty-six thousand eight hundred twenty-one

Notation

Scientific notation 1.29856821 × 10^8
Engineering notation 1.29856821 × 10^6

Prime Factorization of 129856821

Prime Factorization 3 × 181 × 239147

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 129856821
Product of the distinct prime numbers

The prime factorization of 129856821 is 3 × 181 × 239147. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 129856821)

Multiplication

n×y
n×2 259713642
n×3 389570463
n×4 519427284
n×5 649284105

Division

n÷y
n÷2 64928410.5
n÷3 43285607
n÷3 32464205.25
n÷5 25971364.2

Exponentiation

ny
n2 16862793960226041
n3 2.189748816853E+24
n4 2.8435382014504E+32
n5 3.692528312324E+40

Nth Root

y√n
2√n 11395.473706696
3√n 506.39365519305
4√n 106.74958410549
5√n 41.946231884387

Divisors of 129856821

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 -129856820
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 129856821 can be divided by 8 positive divisors. The sum of these divisors (counting 129856821) is 1, the average is 0.125.

Base conversion 129856821

Base System Value
2 Binary 111101111010111010100110101
3 Ternary 100001100102001220
4 Quaternary 13233113110311
5 Quinary 231220404241
6 Senary 20515140553
8 Octal 757272465
10 Decimal 129856821
12 Duodecimal 375a4759
16 Hexadecimal 7bd7535
20 Vigesimal 20bc211
36 Base36 25ba5x

Cryptographic Hash Functions

md5 eda2acd45b4b3f3516dcf4316b04c34c
sha1 c3f08abc938444a251e9de54f1ceadf58cdcf765
sha256 6f86785c437d6e384557a7a56aed56cc51fb319a16303cb40df83b50f7019a1c
sha512 122d619f339d084f4627cf8358b490357283916d1ba2dd2dada673f4820da42c0cbccb8d4ccb9f7fd48fa6ac6cfa57013a474d3bb1c3cacf45713b4d359be38c
ripemd-160 ab25a2488231cab9cab6f60c3119f766ca561b10

129856821 as geometric shapes

Circle

Radius = n
Diameter 259713642
Circumference 815914469.74425
Area 5.2976029624444E+16

Sphere

Radius = n
Volume 9.1723983949762E+24
Surface area 2.1190411849778E+17
Circumference 815914469.74425

Square

Length = n
Perimeter 519427284
Area 16862793960226041
Diagonal 183645277.42486

Cube

Length = n
Surface area 101176763761356246
Volume 2.189748816853E+24
Space diagonal 224918611.68138

Equilateral Triangle

Length = n
Perimeter 389570463
Area 7.3018039741693E+15
Altitude 112459305.84069

Triangular Pyramid

Length = n
Surface area 7.3018039741693E+15
Volume 2.5806437291532E+23
Height 61215092.474952