388996921 (number)

388996921 is an odd 9-digits composite number following 388996920 and preceding 388996922. In scientific notation, it is written as 3.88996921 × 10^8. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 386198244 positive integers (up to 388996921) that are relatively prime to 388996921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.88996921 × 10^8
Engineering notation 3.88996921 × 10^6

Prime Factorization of 388996921

Prime Factorization 139 × 2798539

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 388996921
Product of the distinct prime numbers

The prime factorization of 388996921 is 139 × 2798539. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 2, 88, 89, 678, 790, 3330, 4566, 69086, 15800, 856831, 657866, 3553529, 6521971, 40186644, 29068204, 57269888, 556320172, 6026113448, 157521176

Basic calculations (n = 388996921)

Multiplication

n×y
n×2 777993842
n×3 1166990763
n×4 1555987684
n×5 1944984605

Division

n÷y
n÷2 194498460.5
n÷3 129665640.33333
n÷3 97249230.25
n÷5 77799384.2

Exponentiation

ny
n2 151318604547480241
n3 5.8862471258986E+25
n4 2.2897320082197E+34
n5 8.906987011126E+42

Nth Root

y√n
2√n 19723.004867413
3√n 729.98744020425
4√n 140.43861601217
5√n 52.238323765899

Divisors of 388996921

1, 139, 2798539, 388996921

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 -388996920
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 388996921 can be divided by 4 positive divisors. The sum of these divisors (counting 388996921) is 1, the average is 0.25.

Base conversion 388996921

Base System Value
2 Binary 10111001011111001111100111001
3 Ternary 1000002222002110101
4 Quaternary 113023321330321
5 Quinary 1244040400141
6 Senary 102333315401
8 Octal 2713717471
10 Decimal 388996921
12 Duodecimal aa335b61
16 Hexadecimal 172f9f39
20 Vigesimal 61b4c61
36 Base36 6fljy1

Cryptographic Hash Functions

md5 cd85ef949377c90b25ca908a5bc6fb1f
sha1 69eb3929912a0cea646dfdd69041d4fddb0907ca
sha256 97ace0436b6f1aadb74062492d1f6b12081dea7e7b46931a8060a5d9a297773a
sha512 eb8e0b5611f17b345f52913fdf0425ab5ea38b4d46783acea6ad73abea43386ab5fec1ae898796b6cf047525fcafba19cfa57f06c32ffc26987cf2c6c3f8b6dc
ripemd-160 164cf4fc39ecd4ab62d4f052fcfbf3f345a7dd6d

388996921 as geometric shapes

Circle

Radius = n
Diameter 777993842
Circumference 2444139738.5653
Area 4.7538141639782E+17

Sphere

Radius = n
Volume 2.4656254303916E+26
Surface area 1.9015256655913E+18
Circumference 2444139738.5653

Square

Length = n
Perimeter 1555987684
Area 151318604547480241
Diagonal 550124721.39958

Cube

Length = n
Surface area 907911627284881446
Volume 5.8862471258986E+25
Space diagonal 673762431.15986

Equilateral Triangle

Length = n
Perimeter 1166990763
Area 6.5522877801665E+16
Altitude 336881215.57993

Triangular Pyramid

Length = n
Surface area 6.5522877801665E+16
Volume 6.9370087641046E+24
Height 183374907.13319