388590987 (number)

388590987 is an odd 9-digits composite number following 388590986 and preceding 388590988. In scientific notation, it is written as 3.88590987 × 10^8. The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors. There are 259060656 positive integers (up to 388590987) that are relatively prime to 388590987.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million five hundred ninety thousand nine hundred eighty-seven

Notation

Scientific notation 3.88590987 × 10^8
Engineering notation 3.88590987 × 10^6

Prime Factorization of 388590987

Prime Factorization 3 × 129530329

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 388590987
Product of the distinct prime numbers

The prime factorization of 388590987 is 3 × 129530329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 4, 51, 81, 251, 503, 8477, 6438, 51078, 11334, 809670, 783523, 7617487, 2452510, 70324867, 11717117, 441225178, 505146872, 2447517896, 1828780429

Basic calculations (n = 388590987)

Multiplication

n×y
n×2 777181974
n×3 1165772961
n×4 1554363948
n×5 1942954935

Division

n÷y
n÷2 194295493.5
n÷3 129530329
n÷3 97147746.75
n÷5 77718197.4

Exponentiation

ny
n2 151002955177634169
n3 5.8678387392394E+25
n4 2.2801892472379E+34
n5 8.8606099013095E+42

Nth Root

y√n
2√n 19712.711305145
3√n 729.7334280329
4√n 140.40196332368
5√n 52.227416651955

Divisors of 388590987

1, 3, 129530329, 388590987

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 -388590986
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 388590987 can be divided by 4 positive divisors. The sum of these divisors (counting 388590987) is 1, the average is 0.25.

Base conversion 388590987

Base System Value
2 Binary 10111001010010110110110001011
3 Ternary 1000002012110121210
4 Quaternary 113022112312023
5 Quinary 1243434402422
6 Senary 102320504203
8 Octal 2712266613
10 Decimal 388590987
12 Duodecimal aa17b063
16 Hexadecimal 17296d8b
20 Vigesimal 618dh97
36 Base36 6fcuq3

Cryptographic Hash Functions

md5 fdc556d4e7bc7974812e52cae5dd082c
sha1 5cc7195e33b48f2b85c75f66e23dc05c1a892c70
sha256 611696bc4c47200d2046157c5f99e4b5827c5f60d6b6927bbe93d0955f8e9c8b
sha512 62aba6dc4f41c47d44259fbab0667d4bff28a5dbebee2ae9adc5f638fed5ace96fa0410292374881eebc77a52c012cc188da9e547bd91cb3473d7d2a3fe3c067
ripemd-160 125284a09f66a4e0803b8030852b768641cfd5a4

388590987 as geometric shapes

Circle

Radius = n
Diameter 777181974
Circumference 2441589180.0208
Area 4.743897746564E+17

Sphere

Radius = n
Volume 2.4579145434192E+26
Surface area 1.8975590986256E+18
Circumference 2441589180.0208

Square

Length = n
Perimeter 1554363948
Area 151002955177634169
Diagonal 549550644.03135

Cube

Length = n
Surface area 906017731065805014
Volume 5.8678387392394E+25
Space diagonal 673059332.84734

Equilateral Triangle

Length = n
Perimeter 1165772961
Area 6.5386197615177E+16
Altitude 336529666.42367

Triangular Pyramid

Length = n
Surface area 6.5386197615177E+16
Volume 6.9153142723755E+24
Height 183183548.01045