388640681 (number)

388640681 is an odd 9-digits composite number following 388640680 and preceding 388640682. In scientific notation, it is written as 3.88640681 × 10^8. The sum of its digits is 44. It has a total of 5 prime factors and 24 positive divisors. There are 318115200 positive integers (up to 388640681) that are relatively prime to 388640681.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million six hundred forty thousand six hundred eighty-one

Notation

Scientific notation 3.88640681 × 10^8
Engineering notation 3.88640681 × 10^6

Prime Factorization of 388640681

Prime Factorization 13 × 13 × 41 × 11 × 5099

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 29895437
Product of the distinct prime numbers

The prime factorization of 388640681 is 13 × 13 × 41 × 11 × 5099. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 10, 40, 38, 461, 13, 1815, 2502, 83365, 8023, 135999, 335163, 7480401, 7261724, 98286989, 72700210, 179930684, 489148298, 9033389988, 4645818911

Basic calculations (n = 388640681)

Multiplication

n×y
n×2 777281362
n×3 1165922043
n×4 1554562724
n×5 1943203405

Division

n÷y
n÷2 194320340.5
n÷3 129546893.66667
n÷3 97160170.25
n÷5 77728136.2

Exponentiation

ny
n2 151041578928143761
n3 5.8700902093949E+25
n4 2.2813558565107E+34
n5 8.8662769367764E+42

Nth Root

y√n
2√n 19713.971720584
3√n 729.7645334269
4√n 140.40645184814
5√n 52.228752378505

Divisors of 388640681

1, 11, 13, 41, 143, 169, 451, 533, 1859, 5099, 5863, 6929, 56089, 66287, 76219, 209059, 729157, 861731, 2299649, 2717767, 9479041, 29895437, 35330971, 388640681

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -388640680
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 388640681 can be divided by 24 positive divisors. The sum of these divisors (counting 388640681) is 1, the average is 0.041666666666667.

Base conversion 388640681

Base System Value
2 Binary 10111001010100010111110101001
3 Ternary 1000002021222210022
4 Quaternary 113022202332221
5 Quinary 1243443000211
6 Senary 102321530225
8 Octal 2712427651
10 Decimal 388640681
12 Duodecimal aa1a3975
16 Hexadecimal 172a2fa9
20 Vigesimal 61901e1
36 Base36 6fdx2h

Cryptographic Hash Functions

md5 bcfea361729d00305481e8af781cfc93
sha1 6d9517efddac52934096e5a028d246906a3e0a24
sha256 125489a6c6c2aa2d6770c8d564361385c01f7133bedae3636104f799b580f701
sha512 d6a59e51e6829f9f7980a41e6de8287913632d30a8dc110039e2f95f7e07ee23064766eb05f014bab344a9afa4a60e5162a2821dc00ce69e065584fda73fb685
ripemd-160 9ec7aac6af27a79f5897239857237282009f10f8

388640681 as geometric shapes

Circle

Radius = n
Diameter 777281362
Circumference 2441901416.6315
Area 4.7451111474726E+17

Sphere

Radius = n
Volume 2.4588576370326E+26
Surface area 1.898044458989E+18
Circumference 2441901416.6315

Square

Length = n
Perimeter 1554562724
Area 151041578928143761
Diagonal 549620921.96012

Cube

Length = n
Surface area 906249473568862566
Volume 5.8700902093949E+25
Space diagonal 673145405.38017

Equilateral Triangle

Length = n
Perimeter 1165922043
Area 6.5402922189742E+16
Altitude 336572702.69008

Triangular Pyramid

Length = n
Surface area 6.5402922189742E+16
Volume 6.9179676553998E+24
Height 183206973.98671