388965981 (number)

388965981 is an odd 9-digits composite number following 388965980 and preceding 388965982. In scientific notation, it is written as 3.88965981 × 10^8. The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors. There are 259310652 positive integers (up to 388965981) that are relatively prime to 388965981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.88965981 × 10^8
Engineering notation 3.88965981 × 10^6

Prime Factorization of 388965981

Prime Factorization 3 × 129655327

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 388965981
Product of the distinct prime numbers

The prime factorization of 388965981 is 3 × 129655327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 51, 43, 939, 354, 1907, 8013, 99571, 56179, 679561, 353768, 6013585, 9148622, 71855884, 47107732, 729725284, 673167379, 5359250149, 3694243348

Basic calculations (n = 388965981)

Multiplication

n×y
n×2 777931962
n×3 1166897943
n×4 1555863924
n×5 1944829905

Division

n÷y
n÷2 194482990.5
n÷3 129655327
n÷3 97241495.25
n÷5 77793196.2

Exponentiation

ny
n2 151294534375292361
n3 5.8848426983224E+25
n4 2.2890036131837E+34
n5 8.9034453591452E+42

Nth Root

y√n
2√n 19722.220488576
3√n 729.96808580064
4√n 140.43582338056
5√n 52.237492754097

Divisors of 388965981

1, 3, 129655327, 388965981

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 -388965980
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 388965981 can be divided by 4 positive divisors. The sum of these divisors (counting 388965981) is 1, the average is 0.25.

Base conversion 388965981

Base System Value
2 Binary 10111001011110010011001011101
3 Ternary 1000002220112000110
4 Quaternary 113023302121131
5 Quinary 1244033402411
6 Senary 102332520233
8 Octal 2713623135
10 Decimal 388965981
12 Duodecimal aa320079
16 Hexadecimal 172f265d
20 Vigesimal 61b0ej1
36 Base36 6fkw2l

Cryptographic Hash Functions

md5 7d33dce3339f081818a0049202cf6893
sha1 f09745d71e20a8e4c2c6a56dc5d391b418c6a78a
sha256 53761c868624294ffd63bf5d6281057f0204ec69eb0678520c464c12bc0d0a2e
sha512 bf8219c0d6d7b365cfb490c4b37f55ab43e02bed23f6691f297b0f6b121a722b5a0eb4665e6d8a61d76f05907804b5788b55a165d7e62bd6d98148ed19bda17c
ripemd-160 5d9d44fe2175dd09b3cfdffe00e2010ab99410f6

388965981 as geometric shapes

Circle

Radius = n
Diameter 777931962
Circumference 2443945336.8119
Area 4.7530579772171E+17

Sphere

Radius = n
Volume 2.4650371451442E+26
Surface area 1.9012231908868E+18
Circumference 2443945336.8119

Square

Length = n
Perimeter 1555863924
Area 151294534375292361
Diagonal 550080965.63196

Cube

Length = n
Surface area 907767206251754166
Volume 5.8848426983224E+25
Space diagonal 673708841.50787

Equilateral Triangle

Length = n
Perimeter 1166897943
Area 6.5512455111371E+16
Altitude 336854420.75394

Triangular Pyramid

Length = n
Surface area 6.5512455111371E+16
Volume 6.9353536303332E+24
Height 183360321.87732