31388894 (number)

31388894 is an even 8-digits composite number following 31388893 and preceding 31388895. In scientific notation, it is written as 3.1388894 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 15694446 positive integers (up to 31388894) that are relatively prime to 31388894.

Interesting facts

Basic properties

Name

Name thirty-one million three hundred eighty-eight thousand eight hundred ninety-four

Notation

Scientific notation 3.1388894 × 10^7
Engineering notation 3.1388894 × 10^6

Prime Factorization of 31388894

Prime Factorization 2 × 15694447

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31388894
Product of the distinct prime numbers

The prime factorization of 31388894 is 2 × 15694447. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 3, 24, 906, 995, 2094, 4345, 12163, 59250, 744644, 964006, 8458108, 413264, 96777614, 92849223, 391163498, 475851669, 2417971041, 3219265326

Basic calculations (n = 31388894)

Multiplication

n×y
n×2 62777788
n×3 94166682
n×4 125555576
n×5 156944470

Division

n÷y
n÷2 15694447
n÷3 10462964.666667
n÷3 7847223.5
n÷5 6277778.8

Exponentiation

ny
n2 985262666543236
n3 3.0926305402283E+22
n4 9.7074252208389E+29
n5 3.0470534126984E+37

Nth Root

y√n
2√n 5602.579227463
3√n 315.44622740837
4√n 74.850378940009
5√n 31.575861080075

Divisors of 31388894

1, 2, 15694447, 31388894

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 -31388893
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 31388894 can be divided by 4 positive divisors. The sum of these divisors (counting 31388894) is 1, the average is 0.25.

Base conversion 31388894

Base System Value
2 Binary 1110111101111010011011110
3 Ternary 2012001201110122
4 Quaternary 1313233103132
5 Quinary 31013421034
6 Senary 3040434542
8 Octal 167572336
10 Decimal 31388894
12 Duodecimal a618a52
16 Hexadecimal 1def4de
20 Vigesimal 9g3c4e
36 Base36 iortq

Cryptographic Hash Functions

md5 0a23597b993f8d15efb1f07a4e2b5354
sha1 9267397f5ad5fc5fd658ba94ebf60d2fdabf592e
sha256 715fe9379d32f501ec349b78a20abc087225fec486c258a2f0bae5571f759e02
sha512 9a1d5774e6477debd66424ce08597174099f1fed82ea0df70dda0e1490c8f7fad2549a5d9d0bd27c35d2200a693392679c1e4330776ad683d5dd0ba4940e75f0
ripemd-160 d381f155cb1575c7ccddd1d3abebdbae5138e738

31388894 as geometric shapes

Circle

Radius = n
Diameter 62777788
Circumference 197222237.58942
Area 3.0952939550685E+15

Sphere

Radius = n
Volume 1.2954380513932E+23
Surface area 1.2381175820274E+16
Circumference 197222237.58942

Square

Length = n
Perimeter 125555576
Area 985262666543236
Diagonal 44390599.602691

Cube

Length = n
Surface area 5911575999259416
Volume 3.0926305402283E+22
Space diagonal 54367159.201394

Equilateral Triangle

Length = n
Perimeter 94166682
Area 4.2663124931342E+14
Altitude 27183579.600697

Triangular Pyramid

Length = n
Surface area 4.2663124931342E+14
Volume 3.6447000445001E+21
Height 14796866.53423