31387968 (number)

31387968 is an even 8-digits composite number following 31387967 and preceding 31387969. In scientific notation, it is written as 3.1387968 × 10^7. The sum of its digits is 45. It has a total of 8 prime factors and 28 positive divisors. There are 10462464 positive integers (up to 31387968) that are relatively prime to 31387968.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1387968 × 10^7
Engineering notation 3.1387968 × 10^6

Prime Factorization of 31387968

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 9 × 54493

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 980874
Product of the distinct prime numbers

The prime factorization of 31387968 is 2 × 2 × 2 × 2 × 2 × 2 × 9 × 54493. Since it has a total of 8 prime factors.

Most popular turbo-numbers

Basic calculations (n = 31387968)

Multiplication

n×y
n×2 62775936
n×3 94163904
n×4 125551872
n×5 156939840

Division

n÷y
n÷2 15693984
n÷3 10462656
n÷3 7846992
n÷5 6277593.6

Exponentiation

ny
n2 985204535169024
n3 3.092356842334E+22
n4 9.7062797611761E+29
n5 3.0466039854284E+37

Nth Root

y√n
2√n 5602.4965863443
3√n 315.44312539742
4√n 74.849826895888
5√n 31.575674774738

Divisors of 31387968

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31387967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31387968 can be divided by 28 positive divisors. The sum of these divisors (counting 31387968) is 1, the average is 0.035714285714286.

Base conversion 31387968

Base System Value
2 Binary 1110111101111000101000000
3 Ternary 2012001200012100
4 Quaternary 1313233011000
5 Quinary 31013403333
6 Senary 3040430400
8 Octal 167570500
10 Decimal 31387968
12 Duodecimal a618400
16 Hexadecimal 1def140
20 Vigesimal 9g39i8
36 Base36 ior40

Cryptographic Hash Functions

md5 202a80093c7503c1b950939602f16eaf
sha1 3b0bd30d2bc49153299c7e17190649043ede27c7
sha256 d7a8b4f7bc426caab428d22ddea7ec83abb8c5fbe11614a322615750a8e47d89
sha512 6c19ddb62dd36d3544b4a04fb3aa9529817dc4285dae3d73acd277a2699aa044850aea62eb21f2d87372fcdcb1cd9c104e0778efc20ba143ef6bb9fda0eb14bb
ripemd-160 5f0d837248dc6de20f1d795fb6154d5f0b7a39d7

31387968 as geometric shapes

Circle

Radius = n
Diameter 62775936
Circumference 197216419.35982
Area 3.0951113299704E+15

Sphere

Radius = n
Volume 1.2953234050873E+23
Surface area 1.2380445319881E+16
Circumference 197216419.35982

Square

Length = n
Perimeter 125551872
Area 985204535169024
Diagonal 44389290.040933

Cube

Length = n
Surface area 5911227211014144
Volume 3.092356842334E+22
Space diagonal 54365555.322346

Equilateral Triangle

Length = n
Perimeter 94163904
Area 4.2660607769001E+14
Altitude 27182777.661173

Triangular Pyramid

Length = n
Surface area 4.2660607769001E+14
Volume 3.6443774884383E+21
Height 14796430.013644