129956721 (number)

129956721 is an odd 9-digits composite number following 129956720 and preceding 129956722. In scientific notation, it is written as 1.29956721 × 10^8. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 81541440 positive integers (up to 129956721) that are relatively prime to 129956721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29956721 × 10^8
Engineering notation 1.29956721 × 10^6

Prime Factorization of 129956721

Prime Factorization 3 × 17 × 2548171

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 129956721
Product of the distinct prime numbers

The prime factorization of 129956721 is 3 × 17 × 2548171. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 129956721)

Multiplication

n×y
n×2 259913442
n×3 389870163
n×4 519826884
n×5 649783605

Division

n÷y
n÷2 64978360.5
n÷3 43318907
n÷3 32489180.25
n÷5 25991344.2

Exponentiation

ny
n2 16888749333071841
n3 2.194806485117E+24
n4 2.8522985403533E+32
n5 3.7067536561741E+40

Nth Root

y√n
2√n 11399.856183303
3√n 506.52347961177
4√n 106.7701090348
5√n 41.952683820657

Divisors of 129956721

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 -129956720
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 129956721 can be divided by 8 positive divisors. The sum of these divisors (counting 129956721) is 1, the average is 0.125.

Base conversion 129956721

Base System Value
2 Binary 111101111101111101101110001
3 Ternary 100001112111002220
4 Quaternary 13233233231301
5 Quinary 231232103341
6 Senary 20521231253
8 Octal 757575561
10 Decimal 129956721
12 Duodecimal 37632529
16 Hexadecimal 7befb71
20 Vigesimal 20c4bg1
36 Base36 25df8x

Cryptographic Hash Functions

md5 b29d1a0be888c29ceb1eaa41b4ad7f73
sha1 e1d65517e5bdb49fdc94dedc037290250fdff7b8
sha256 7b74d11b1e412c5496e4960841997c541f7a25ea9aa5f343a5d6d3597fcb9fd0
sha512 21639874959128daed513ff3dc2f73b9c923f573805f769ad19b118a6a52cf3b4baea7725d6e5e1b30c7bc84ec65df056a4d62ff9cdf9426dcd582e910f4dba7
ripemd-160 59a530c2f398485a4bc4780e929e34c2545ce5dc

129956721 as geometric shapes

Circle

Radius = n
Diameter 259913442
Circumference 816542159.95644
Area 5.3057570833098E+16

Sphere

Radius = n
Volume 9.1935839062595E+24
Surface area 2.1223028333239E+17
Circumference 816542159.95644

Square

Length = n
Perimeter 519826884
Area 16888749333071841
Diagonal 183786557.35974

Cube

Length = n
Surface area 101332495998431046
Volume 2.194806485117E+24
Space diagonal 225091643.55705

Equilateral Triangle

Length = n
Perimeter 389870163
Area 7.3130429802939E+15
Altitude 112545821.77853

Triangular Pyramid

Length = n
Surface area 7.3130429802939E+15
Volume 2.586604248364E+23
Height 61262185.786579