31987130 (number)

31987130 is an even 8-digits composite number following 31987129 and preceding 31987131. In scientific notation, it is written as 3.1987130 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 10966992 positive integers (up to 31987130) that are relatively prime to 31987130.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred eighty-seven thousand one hundred thirty

Notation

Scientific notation 3.1987130 × 10^7
Engineering notation 3.1987130 × 10^6

Prime Factorization of 31987130

Prime Factorization 2 × 5 × 7 × 456959

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 31987130
Product of the distinct prime numbers

The prime factorization of 31987130 is 2 × 5 × 7 × 456959. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 1, 30, 95, 529, 409, 710, 8524, 40551, 45355, 51961, 534239, 727835, 7967624, 89900965, 91300981, 648686045, 193776253, 5464127137, 3935112118

Basic calculations (n = 31987130)

Multiplication

n×y
n×2 63974260
n×3 95961390
n×4 127948520
n×5 159935650

Division

n÷y
n÷2 15993565
n÷3 10662376.666667
n÷3 7996782.5
n÷5 6397426

Exponentiation

ny
n2 1023176485636900
n3 3.2728479259011E+22
n4 1.0468901207603E+30
n5 3.3487010388475E+37

Nth Root

y√n
2√n 5655.7165770572
3√n 317.43764249566
4√n 75.204498383124
5√n 31.695313742017

Divisors of 31987130

1, 2, 5, 7, 10, 14, 35, 70, 456959, 913918, 2284795, 3198713, 4569590, 6397426, 15993565, 31987130

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 -31987129
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 31987130 can be divided by 16 positive divisors. The sum of these divisors (counting 31987130) is 1, the average is 0.0625.

Base conversion 31987130

Base System Value
2 Binary 1111010000001010110111010
3 Ternary 2020012010002112
4 Quaternary 1322001112322
5 Quinary 31142042010
6 Senary 3101332322
8 Octal 172012672
10 Decimal 31987130
12 Duodecimal a8670a2
16 Hexadecimal 1e815ba
20 Vigesimal 9ji7ga
36 Base36 j1lfe

Cryptographic Hash Functions

md5 165041d7723b2daea416614c68631cd1
sha1 433ee6451129e6ca3c8caf478bf2156dff2dab38
sha256 457808da6cba239d8680e0350eceacd917df78d5d024538c531de66dca28fb14
sha512 7bac6ac46c6cb814c94360fd3deeb6d7e24d496a67dda75600b6db874e7f73fcf2c1f1f51dd83df9433f522d265e5183f8b0aa3bde96c909644869d4d8de471c
ripemd-160 e457ee5cb7ec430e549ce0ca3a118527b1cf4394

31987130 as geometric shapes

Circle

Radius = n
Diameter 63974260
Circumference 200981065.23484
Area 3.2144037306027E+15

Sphere

Radius = n
Volume 1.370927333377E+23
Surface area 1.2857614922411E+16
Circumference 200981065.23484

Square

Length = n
Perimeter 127948520
Area 1023176485636900
Diagonal 45236633.067391

Cube

Length = n
Surface area 6139058913821400
Volume 3.2728479259011E+22
Space diagonal 55403334.348311

Equilateral Triangle

Length = n
Perimeter 95961390
Area 4.4304841455822E+14
Altitude 27701667.174155

Triangular Pyramid

Length = n
Surface area 4.4304841455822E+14
Volume 3.8570882703283E+21
Height 15078877.68913