31387890 (number)

31387890 is an even 8-digits composite number following 31387889 and preceding 31387891. In scientific notation, it is written as 3.1387890 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 8370096 positive integers (up to 31387890) that are relatively prime to 31387890.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1387890 × 10^7
Engineering notation 3.1387890 × 10^6

Prime Factorization of 31387890

Prime Factorization 2 × 3 × 5 × 1046263

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 31387890
Product of the distinct prime numbers

The prime factorization of 31387890 is 2 × 3 × 5 × 1046263. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 27, 68, 796, 569, 9655, 3427, 95898, 72780, 916427, 362258, 4655842, 5076132, 71858176, 65496819, 50896523, 106540910, 4820510499, 4744399880

Basic calculations (n = 31387890)

Multiplication

n×y
n×2 62775780
n×3 94163670
n×4 125551560
n×5 156939450

Division

n÷y
n÷2 15693945
n÷3 10462630
n÷3 7846972.5
n÷5 6277578

Exponentiation

ny
n2 985199638652100
n3 3.0923337886052E+22
n4 9.7061832800023E+29
n5 3.0465661311255E+37

Nth Root

y√n
2√n 5602.4896251577
3√n 315.44286410213
4√n 74.849780394853
5√n 31.575659081431

Divisors of 31387890

1, 2, 3, 5, 6, 10, 15, 30, 1046263, 2092526, 3138789, 5231315, 6277578, 10462630, 15693945, 31387890

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31387889
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31387890 can be divided by 16 positive divisors. The sum of these divisors (counting 31387890) is 1, the average is 0.0625.

Base conversion 31387890

Base System Value
2 Binary 1110111101111000011110010
3 Ternary 2012001200002110
4 Quaternary 1313233003302
5 Quinary 31013403030
6 Senary 3040430150
8 Octal 167570362
10 Decimal 31387890
12 Duodecimal a618356
16 Hexadecimal 1def0f2
20 Vigesimal 9g39ea
36 Base36 ior1u

Cryptographic Hash Functions

md5 8b9a61a24c86a69434c55e80a5eed420
sha1 49f8d6495da1c3d4a52a29b4e2b4329e9fa5c460
sha256 48909211a36df19553de8ba88f23231b2afe750d1639638ca730417ac611ae0a
sha512 2ac080cd0b4cec57bd5c15cf82b7802487031bdc7d817d9e5c44d013ee6da40094933256530010a5aa0df48c71cb610b3fd0bffdc2904da8e615378e7949fe8c
ripemd-160 a924a3254470d5c0cc0ccd3ca2edb3c6ae921755

31387890 as geometric shapes

Circle

Radius = n
Diameter 62775780
Circumference 197215929.27137
Area 3.0950959471088E+15

Sphere

Radius = n
Volume 1.2953137483639E+23
Surface area 1.2380383788435E+16
Circumference 197215929.27137

Square

Length = n
Perimeter 125551560
Area 985199638652100
Diagonal 44389179.732275

Cube

Length = n
Surface area 5911197831912600
Volume 3.0923337886052E+22
Space diagonal 54365420.222383

Equilateral Triangle

Length = n
Perimeter 94163670
Area 4.2660395743598E+14
Altitude 27182710.111192

Triangular Pyramid

Length = n
Surface area 4.2660395743598E+14
Volume 3.6443503193584E+21
Height 14796393.244092