129487987 (number)

129487987 is an odd 9-digits composite number following 129487986 and preceding 129487988. In scientific notation, it is written as 1.29487987 × 10^8. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 125022856 positive integers (up to 129487987) that are relatively prime to 129487987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.29487987 × 10^8
Engineering notation 1.29487987 × 10^6

Prime Factorization of 129487987

Prime Factorization 29 × 4465103

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129487987
Product of the distinct prime numbers

The prime factorization of 129487987 is 29 × 4465103. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 5, 92, 54, 694, 819, 2572, 9343, 12200, 37689, 729262, 152325, 3913739, 29347, 97011138, 62968278, 858150559, 666392232, 6527355832, 3961987064

Basic calculations (n = 129487987)

Multiplication

n×y
n×2 258975974
n×3 388463961
n×4 517951948
n×5 647439935

Division

n÷y
n÷2 64743993.5
n÷3 43162662.333333
n÷3 32371996.75
n÷5 25897597.4

Exponentiation

ny
n2 16767138777312169
n3 2.1711430480238E+24
n4 2.8113694277765E+32
n5 3.6403856791611E+40

Nth Root

y√n
2√n 11379.278843582
3√n 505.91376175124
4√n 106.67370268057
5√n 41.922376682017

Divisors of 129487987

1, 29, 4465103, 129487987

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 -129487986
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 129487987 can be divided by 4 positive divisors. The sum of these divisors (counting 129487987) is 1, the average is 0.25.

Base conversion 129487987

Base System Value
2 Binary 111101101111101010001110011
3 Ternary 100000122200010101
4 Quaternary 13231331101303
5 Quinary 231122103422
6 Senary 20503213231
8 Octal 755752163
10 Decimal 129487987
12 Duodecimal 37447217
16 Hexadecimal 7b7d473
20 Vigesimal 2095jj7
36 Base36 253dkj

Cryptographic Hash Functions

md5 1d62c5a0b5045e5915101b1e2e17f4d5
sha1 af7c4bf18dd5890ad0f5b379a7221dab7631291e
sha256 64241c8788f5dad4459b2901cb807989323cec8be2db62c446ee4f0f9354b96c
sha512 8bd0009a8e75df281321ecb7bad9b00b45d8c6465b8121fe0d058ab36f7a7ef3104e57a6aa71b21e0cf9f2c105a829069d7d21ee81a2f088c532a8ec3205de3c
ripemd-160 66cf96efa3e350ad212cb8fd5a988cc39cb49734

129487987 as geometric shapes

Circle

Radius = n
Diameter 258975974
Circumference 813597017.37466
Area 5.2675520004524E+16

Sphere

Radius = n
Volume 9.0944627327521E+24
Surface area 2.107020800181E+17
Circumference 813597017.37466

Square

Length = n
Perimeter 517951948
Area 16767138777312169
Diagonal 183123667.37979

Cube

Length = n
Surface area 100602832663873014
Volume 2.1711430480238E+24
Space diagonal 224279772.45382

Equilateral Triangle

Length = n
Perimeter 388463961
Area 7.2603840649657E+15
Altitude 112139886.22691

Triangular Pyramid

Length = n
Surface area 7.2603840649657E+15
Volume 2.5587166203061E+23
Height 61041222.45993