388639661 (number)

388639661 is an odd 9-digits composite number following 388639660 and preceding 388639662. In scientific notation, it is written as 3.88639661 × 10^8. The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors. There are 366273792 positive integers (up to 388639661) that are relatively prime to 388639661.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.88639661 × 10^8
Engineering notation 3.88639661 × 10^6

Prime Factorization of 388639661

Prime Factorization 19 × 193 × 105983

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 388639661
Product of the distinct prime numbers

The prime factorization of 388639661 is 19 × 193 × 105983. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 5, 17, 18, 142, 208, 4177, 7666, 20410, 30237, 979585, 14182, 6786940, 3669332, 61652128, 28939519, 690683486, 169571848, 5196926848, 544760281

Basic calculations (n = 388639661)

Multiplication

n×y
n×2 777279322
n×3 1165918983
n×4 1554558644
n×5 1943198305

Division

n÷y
n÷2 194319830.5
n÷3 129546553.66667
n÷3 97159915.25
n÷5 77727932.2

Exponentiation

ny
n2 151040786102194921
n3 5.8700439907931E+25
n4 2.2813319066369E+34
n5 8.8661605882385E+42

Nth Root

y√n
2√n 19713.94585059
3√n 729.76389499616
4√n 140.40635972274
5√n 52.228724963267

Divisors of 388639661

1, 19, 193, 3667, 105983, 2013677, 20454719, 388639661

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 -388639660
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 388639661 can be divided by 8 positive divisors. The sum of these divisors (counting 388639661) is 1, the average is 0.125.

Base conversion 388639661

Base System Value
2 Binary 10111001010100010101110101101
3 Ternary 1000002021221101112
4 Quaternary 113022202232231
5 Quinary 1243442432121
6 Senary 102321521405
8 Octal 2712425655
10 Decimal 388639661
12 Duodecimal aa1a3265
16 Hexadecimal 172a2bad
20 Vigesimal 618jj31
36 Base36 6fdwa5

Cryptographic Hash Functions

md5 5a7ba3a5df62e8bdff81416869842dec
sha1 1e268a28fba887d2c4f25c72b77b03d239352741
sha256 8771319a665870a19f53a13843073c2bc35bb5508d3ba56d300e2bb51fbfa091
sha512 b22efa54d6ee7dc0424f5dcf3f7441aa06f2850e949cc6843d1bfcd1cf008bdbabb49f153225e365e9bfccd03e3e2fd42bda52f390ed7f9713e676e07a94a33f
ripemd-160 f757624cd3e396a1466f9c59f51836964fd25086

388639661 as geometric shapes

Circle

Radius = n
Diameter 777279322
Circumference 2441895007.7825
Area 4.7450862401108E+17

Sphere

Radius = n
Volume 2.4588382770299E+26
Surface area 1.8980344960443E+18
Circumference 2441895007.7825

Square

Length = n
Perimeter 1554558644
Area 151040786102194921
Diagonal 549619479.46228

Cube

Length = n
Surface area 906244716613169526
Volume 5.8700439907931E+25
Space diagonal 673143638.68834

Equilateral Triangle

Length = n
Perimeter 1165918983
Area 6.5402578886036E+16
Altitude 336571819.34417

Triangular Pyramid

Length = n
Surface area 6.5402578886036E+16
Volume 6.9179131862552E+24
Height 183206493.15409