388621945 (number)

388621945 is an odd 9-digits composite number following 388621944 and preceding 388621946. In scientific notation, it is written as 3.88621945 × 10^8. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 310897552 positive integers (up to 388621945) that are relatively prime to 388621945.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.88621945 × 10^8
Engineering notation 3.88621945 × 10^6

Prime Factorization of 388621945

Prime Factorization 5 × 77724389

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 388621945
Product of the distinct prime numbers

The prime factorization of 388621945 is 5 × 77724389. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 34, 13, 405, 999, 8589, 3018, 51114, 78989, 563930, 808968, 9806606, 7998097, 52049740, 53791455, 93980360, 27290973, 2879649158, 4071680794

Basic calculations (n = 388621945)

Multiplication

n×y
n×2 777243890
n×3 1165865835
n×4 1554487780
n×5 1943109725

Division

n÷y
n÷2 194310972.5
n÷3 129540648.33333
n÷3 97155486.25
n÷5 77724389

Exponentiation

ny
n2 151027016135583025
n3 5.8692412758157E+25
n4 2.2809159602818E+34
n5 8.8641399686624E+42

Nth Root

y√n
2√n 19713.496518883
3√n 729.75280615225
4√n 140.40475960195
5√n 52.228248789034

Divisors of 388621945

1, 5, 77724389, 388621945

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 -388621944
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 388621945 can be divided by 4 positive divisors. The sum of these divisors (counting 388621945) is 1, the average is 0.25.

Base conversion 388621945

Base System Value
2 Binary 10111001010011110011001111001
3 Ternary 1000002021001002101
4 Quaternary 113022132121321
5 Quinary 1243441400240
6 Senary 102321303401
8 Octal 2712363171
10 Decimal 388621945
12 Duodecimal aa194b61
16 Hexadecimal 1729e679
20 Vigesimal 618heh5
36 Base36 6fdim1

Cryptographic Hash Functions

md5 4a2d5087f50a2b360ba5d145fe9ead19
sha1 7f06ed73af60c872368129c32909409c93e10c90
sha256 1428c5d3fd776c9efb4c68f4d1d426bf6e78a648fdb1081f845d3630832987cb
sha512 fb9d4dff553e0e464d2e49676176e15f4170f310beb6f2203efa27040d77fd6a119997744a5c7803c265aaa7d11351055adfc6af3a19b2e36c4f7cad06c7ae48
ripemd-160 1a93017461cb274b85f2af1365dce453c004a227

388621945 as geometric shapes

Circle

Radius = n
Diameter 777243890
Circumference 2441783694.8716
Area 4.7446536438513E+17

Sphere

Radius = n
Volume 2.4585020365665E+26
Surface area 1.8978614575405E+18
Circumference 2441783694.8716

Square

Length = n
Perimeter 1554487780
Area 151027016135583025
Diagonal 549594425.25481

Cube

Length = n
Surface area 906162096813498150
Volume 5.8692412758157E+25
Space diagonal 673112953.67624

Equilateral Triangle

Length = n
Perimeter 1165865835
Area 6.5396616315589E+16
Altitude 336556476.83812

Triangular Pyramid

Length = n
Surface area 6.5396616315589E+16
Volume 6.9169671775821E+24
Height 183198141.7516