31389215 (number)

31389215 is an odd 8-digits composite number following 31389214 and preceding 31389216. In scientific notation, it is written as 3.1389215 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors. There are 21003840 positive integers (up to 31389215) that are relatively prime to 31389215.

Interesting facts

Basic properties

Name

Name thirty-one million three hundred eighty-nine thousand two hundred fifteen

Notation

Scientific notation 3.1389215 × 10^7
Engineering notation 3.1389215 × 10^6

Prime Factorization of 31389215

Prime Factorization 5 × 13 × 13 × 121 × 307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2414555
Product of the distinct prime numbers

The prime factorization of 31389215 is 5 × 13 × 13 × 121 × 307. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 9, 69, 95, 231, 818, 1596, 1460, 78444, 35769, 578573, 969805, 3569662, 9025241, 34798108, 94437036, 976986388, 883675898, 7397143685, 5357091626

Basic calculations (n = 31389215)

Multiplication

n×y
n×2 62778430
n×3 94167645
n×4 125556860
n×5 156946075

Division

n÷y
n÷2 15694607.5
n÷3 10463071.666667
n÷3 7847303.75
n÷5 6277843

Exponentiation

ny
n2 985282818316225
n3 3.0927254219934E+22
n4 9.7078223206916E+29
n5 3.0472092200599E+37

Nth Root

y√n
2√n 5602.6078749097
3√n 315.44730271326
4√n 74.850570304505
5√n 31.575925662216

Divisors of 31389215

1, 5, 13, 65, 121, 169, 307, 605, 845, 1535, 1573, 3991, 7865, 19955, 20449, 37147, 51883, 102245, 185735, 259415, 482911, 2414555, 6277843, 31389215

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31389214
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31389215 can be divided by 24 positive divisors. The sum of these divisors (counting 31389215) is 1, the average is 0.041666666666667.

Base conversion 31389215

Base System Value
2 Binary 1110111101111011000011111
3 Ternary 2012001201220112
4 Quaternary 1313233120133
5 Quinary 31013423330
6 Senary 3040440235
8 Octal 167573037
10 Decimal 31389215
12 Duodecimal a61907b
16 Hexadecimal 1def61f
20 Vigesimal 9g3d0f
36 Base36 ios2n

Cryptographic Hash Functions

md5 82b98e160f97ca3b8f09d4fe016b9f95
sha1 1fcef0c6cd0d58fa35ceecd915f630e797e52682
sha256 401638306db7e3c39784633d7b30f72c2e90e20961fe59dc36c834bb8482349a
sha512 d906da3071bb10abad051e9b7b3a3a67b92b3792b26805e0510d2c27d701273b49c212216ce3b3bf12608adae30631e489aa9434062c011d74c307dbd3214061
ripemd-160 dfcc759ad2b426d10b72028b6a5785768f7eba18

31389215 as geometric shapes

Circle

Radius = n
Diameter 62778430
Circumference 197224254.4919
Area 3.0953572637305E+15

Sphere

Radius = n
Volume 1.295477795374E+23
Surface area 1.2381429054922E+16
Circumference 197224254.4919

Square

Length = n
Perimeter 125556860
Area 985282818316225
Diagonal 44391053.565245

Cube

Length = n
Surface area 5911696909897350
Volume 3.0927254219934E+22
Space diagonal 54367715.189703

Equilateral Triangle

Length = n
Perimeter 94167645
Area 4.2663997528709E+14
Altitude 27183857.594852

Triangular Pyramid

Length = n
Surface area 4.2663997528709E+14
Volume 3.6448118637326E+21
Height 14797017.855082