388889661 (number)

388889661 is an odd 9-digits composite number following 388889660 and preceding 388889662. In scientific notation, it is written as 3.88889661 × 10^8. The sum of its digits is 57. It has a total of 3 prime factors and 8 positive divisors. There are 259202160 positive integers (up to 388889661) that are relatively prime to 388889661.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.88889661 × 10^8
Engineering notation 3.88889661 × 10^6

Prime Factorization of 388889661

Prime Factorization 3 × 5581 × 23227

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 388889661
Product of the distinct prime numbers

The prime factorization of 388889661 is 3 × 5581 × 23227. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 3, 51, 96, 556, 995, 7519, 7650, 9450, 15377, 819086, 10193, 8360571, 8484801, 33256469, 32180992, 788007543, 179489426, 455930789, 9225043465

Basic calculations (n = 388889661)

Multiplication

n×y
n×2 777779322
n×3 1166668983
n×4 1555558644
n×5 1944448305

Division

n÷y
n÷2 194444830.5
n÷3 129629887
n÷3 97222415.25
n÷5 77777932.2

Exponentiation

ny
n2 151235168432694921
n3 5.8813793383069E+25
n4 2.2872076170866E+34
n5 8.8947139484541E+42

Nth Root

y√n
2√n 19720.285520245
3√n 729.92033971557
4√n 140.4289340565
5√n 52.235442663046

Divisors of 388889661

1, 3, 5581, 16743, 23227, 69681, 129629887, 388889661

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 -388889660
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 388889661 can be divided by 8 positive divisors. The sum of these divisors (counting 388889661) is 1, the average is 0.125.

Base conversion 388889661

Base System Value
2 Binary 10111001011011111110000111101
3 Ternary 1000002202122022210
4 Quaternary 113023133300331
5 Quinary 1244023432121
6 Senary 102331131033
8 Octal 2713376075
10 Decimal 388889661
12 Duodecimal aa2a3a79
16 Hexadecimal 172dfc3d
20 Vigesimal 61ab431
36 Base36 6fj96l

Cryptographic Hash Functions

md5 082d536dcb657ca5e76af5aeb16e6b88
sha1 c02b35ea5071dff528a411e7781f24dfb3bd881f
sha256 777b68ec59a8d906d95efd95f5890aab4efe3d2260d83c04f928467a07a4cae8
sha512 1c5da127bc9391cf55575908b5ea230d7e81a77457acfdfd62d44e68fc9f5e280cec5d4d76153d7f52d52d2a54930242328ac2a0cf0dd14d515888e316ec7352
ripemd-160 f23f8d7605214c8be1b153182dbee434312e3b85

388889661 as geometric shapes

Circle

Radius = n
Diameter 777779322
Circumference 2443465804.1093
Area 4.7511929411257E+17

Sphere

Radius = n
Volume 2.4635864162933E+26
Surface area 1.9004771764503E+18
Circumference 2443465804.1093

Square

Length = n
Perimeter 1555558644
Area 151235168432694921
Diagonal 549973032.85288

Cube

Length = n
Surface area 907411010596169526
Volume 5.8813793383069E+25
Space diagonal 673576651.39024

Equilateral Triangle

Length = n
Perimeter 1166668983
Area 6.5486748904166E+16
Altitude 336788325.69512

Triangular Pyramid

Length = n
Surface area 6.5486748904166E+16
Volume 6.9312720214121E+24
Height 183324344.28429