388620987 (number)

388620987 is an odd 9-digits composite number following 388620986 and preceding 388620988. In scientific notation, it is written as 3.88620987 × 10^8. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 255801000 positive integers (up to 388620987) that are relatively prime to 388620987.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million six hundred twenty thousand nine hundred eighty-seven

Notation

Scientific notation 3.88620987 × 10^8
Engineering notation 3.88620987 × 10^6

Prime Factorization of 388620987

Prime Factorization 3 × 79 × 1639751

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 388620987
Product of the distinct prime numbers

The prime factorization of 388620987 is 3 × 79 × 1639751. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 2, 58, 3, 280, 746, 9266, 1288, 81890, 82841, 242385, 527435, 2689246, 4067368, 219428, 39019988, 870154823, 570033178, 3196447011, 3918756782

Basic calculations (n = 388620987)

Multiplication

n×y
n×2 777241974
n×3 1165862961
n×4 1554483948
n×5 1943104935

Division

n÷y
n÷2 194310493.5
n÷3 129540329
n÷3 97155246.75
n÷5 77724197.4

Exponentiation

ny
n2 151026271536854169
n3 5.8691978707582E+25
n4 2.2808934694324E+34
n5 8.8640307133266E+42

Nth Root

y√n
2√n 19713.472220794
3√n 729.75220650884
4√n 140.40467307321
5√n 52.228223039221

Divisors of 388620987

1, 3, 79, 237, 1639751, 4919253, 129540329, 388620987

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 -388620986
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 388620987 can be divided by 8 positive divisors. The sum of these divisors (counting 388620987) is 1, the average is 0.125.

Base conversion 388620987

Base System Value
2 Binary 10111001010011110001010111011
3 Ternary 1000002020222202220
4 Quaternary 113022132022323
5 Quinary 1243441332422
6 Senary 102321255123
8 Octal 2712361273
10 Decimal 388620987
12 Duodecimal aa1944a3
16 Hexadecimal 1729e2bb
20 Vigesimal 618hc97
36 Base36 6fdhvf

Cryptographic Hash Functions

md5 1dc3034a41e085198aeaf1ce147cb846
sha1 8e4ef40d4334cbf7d20a0b6ed43e0c558f9b22d8
sha256 b7ca6dfc81ebf75fd4b1d85ec2f36ce1be74a4a4215c825626eeb15a64bc02bb
sha512 12801c872590f0eaa730dc3bc4a20223f5f4fe9640f12ed57f0e80cd1cc13930c605eb1ab4646e0a2534c2b9900c1b750e1f5ecb6e0be333b2ff24a8f2a84bf8
ripemd-160 8d1213301bd330a462c3065f47ae1b9dfc81e3f0

388620987 as geometric shapes

Circle

Radius = n
Diameter 777241974
Circumference 2441777675.58
Area 4.7446302515924E+17

Sphere

Radius = n
Volume 2.4584838550985E+26
Surface area 1.897852100637E+18
Circumference 2441777675.58

Square

Length = n
Perimeter 1554483948
Area 151026271536854169
Diagonal 549593070.43822

Cube

Length = n
Surface area 906157629221125014
Volume 5.8691978707582E+25
Space diagonal 673111294.37156

Equilateral Triangle

Length = n
Perimeter 1165862961
Area 6.5396293894881E+16
Altitude 336555647.18578

Triangular Pyramid

Length = n
Surface area 6.5396293894881E+16
Volume 6.9169160242313E+24
Height 183197690.14607