388664991 (number)

388664991 is an odd 9-digits composite number following 388664990 and preceding 388664992. In scientific notation, it is written as 3.88664991 × 10^8. The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors. There are 217434240 positive integers (up to 388664991) that are relatively prime to 388664991.

Interesting facts

Basic properties

Name

Name three hundred eighty-eight million six hundred sixty-four thousand nine hundred ninety-one

Notation

Scientific notation 3.88664991 × 10^8
Engineering notation 3.88664991 × 10^6

Prime Factorization of 388664991

Prime Factorization 39 × 3 × 11 × 301993

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 388664991
Product of the distinct prime numbers

The prime factorization of 388664991 is 39 × 3 × 11 × 301993. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 19, 2, 686, 16, 3862, 4732, 32466, 89999, 545443, 671181, 7675513, 9095803, 16027492, 44683070, 13982637, 32520176, 6075481151, 7302076445

Basic calculations (n = 388664991)

Multiplication

n×y
n×2 777329982
n×3 1165994973
n×4 1554659964
n×5 1943324955

Division

n÷y
n÷2 194332495.5
n÷3 129554997
n÷3 97166247.75
n÷5 77732998.2

Exponentiation

ny
n2 151060475229030081
n3 5.8711918245347E+25
n4 2.281926717642E+34
n5 8.86905027175E+42

Nth Root

y√n
2√n 19714.588278734
3√n 729.77974902903
4√n 140.40864744998
5√n 52.229405757971

Divisors of 388664991

1, 3, 11, 33, 39, 117, 429, 1287, 301993, 905979, 3321923, 9965769, 11777727, 35333181, 129554997, 388664991

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -388664990
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 388664991 can be divided by 16 positive divisors. The sum of these divisors (counting 388664991) is 1, the average is 0.0625.

Base conversion 388664991

Base System Value
2 Binary 10111001010101000111010011111
3 Ternary 1000002100020010200
4 Quaternary 113022220322133
5 Quinary 1243444234431
6 Senary 102322234543
8 Octal 2712507237
10 Decimal 388664991
12 Duodecimal aa1b5a53
16 Hexadecimal 172a8e9f
20 Vigesimal 619329b
36 Base36 6feftr

Cryptographic Hash Functions

md5 9cd80ba8d8ca816e7d52574367e0235c
sha1 515d78898cba704d02f30f1ace1851f893b5cfb7
sha256 bb6d865e64643dea81aa2befa9a0518a170b80e3908892fc1f5d42a17c0a2d96
sha512 2e5914fd45ce09ade7f5b64a032be7c3bb8da96dbc31b0c133fe434077ee49b7d795a4eb7b01327716017c10d9b254edc003203ebe05a0fc23601080d00ac685
ripemd-160 e205479de7929e898681ff818fccfc36dcdbc264

388664991 as geometric shapes

Circle

Radius = n
Diameter 777329982
Circumference 2442054160.8663
Area 4.745704792273E+17

Sphere

Radius = n
Volume 2.4593190805033E+26
Surface area 1.8982819169092E+18
Circumference 2442054160.8663

Square

Length = n
Perimeter 1554659964
Area 151060475229030081
Diagonal 549655301.49182

Cube

Length = n
Surface area 906362851374180486
Volume 5.8711918245347E+25
Space diagonal 673187511.5353

Equilateral Triangle

Length = n
Perimeter 1165994973
Area 6.5411104528045E+16
Altitude 336593755.76765

Triangular Pyramid

Length = n
Surface area 6.5411104528045E+16
Volume 6.9192659212925E+24
Height 183218433.83061