31991490 (number)

31991490 is an even 8-digits composite number following 31991489 and preceding 31991491. In scientific notation, it is written as 3.1991490 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 8346240 positive integers (up to 31991490) that are relatively prime to 31991490.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred ninety-one thousand four hundred ninety

Notation

Scientific notation 3.1991490 × 10^7
Engineering notation 3.1991490 × 10^6

Prime Factorization of 31991490

Prime Factorization 2 × 45 × 3 × 47 × 2521

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 31991490
Product of the distinct prime numbers

The prime factorization of 31991490 is 2 × 45 × 3 × 47 × 2521. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 10, 89, 17, 899, 525, 1247, 5570, 37594, 48953, 142787, 765137, 6286048, 530421, 90501632, 99133185, 746831012, 752609421, 3279911554, 9573984889

Basic calculations (n = 31991490)

Multiplication

n×y
n×2 63982980
n×3 95974470
n×4 127965960
n×5 159957450

Division

n÷y
n÷2 15995745
n÷3 10663830
n÷3 7997872.5
n÷5 6398298

Exponentiation

ny
n2 1023455432420100
n3 3.2741864231713E+22
n4 1.0474610221502E+30
n5 3.3509838815508E+37

Nth Root

y√n
2√n 5656.1020146387
3√n 317.45206460067
4√n 75.20706093605
5√n 31.696177739719

Divisors of 31991490

1, 2, 3, 6, 45, 47, 90, 94, 135, 141, 270, 282, 2115, 2521, 4230, 5042, 6345, 7563, 12690, 15126, 113445, 118487, 226890, 236974, 340335, 355461, 680670, 710922, 5331915, 10663830, 15995745, 31991490

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31991489
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31991490 can be divided by 32 positive divisors. The sum of these divisors (counting 31991490) is 1, the average is 0.03125.

Base conversion 31991490

Base System Value
2 Binary 1111010000010011011000010
3 Ternary 2020012100002000
4 Quaternary 1322002123002
5 Quinary 31142211430
6 Senary 3101404430
8 Octal 172023302
10 Decimal 31991490
12 Duodecimal a869716
16 Hexadecimal 1e826c2
20 Vigesimal 9jiiea
36 Base36 j1osi

Cryptographic Hash Functions

md5 b3a82ae8613d11e778474f3cad1f0473
sha1 6d6ad9d46ec6d721598342465728b8524361e112
sha256 72a333ec778fa714effdc8091e223dd3f466611195b7ee3a809376b19f9f8734
sha512 cea6e2d17f03f4ef4b82bcceab4609802d36b61ec915a62b0b07c607aa2a891c555e9efdbcf62bd493f602a505b73496b9298230a3171745b7a62dcd29058556
ripemd-160 c397d8f4960c16316437f39f54d310794409c603

31991490 as geometric shapes

Circle

Radius = n
Diameter 63982980
Circumference 201008459.92278
Area 3.2152800677676E+15

Sphere

Radius = n
Volume 1.3714880018025E+23
Surface area 1.286112027107E+16
Circumference 201008459.92278

Square

Length = n
Perimeter 127965960
Area 1023455432420100
Diagonal 45242799.038523

Cube

Length = n
Surface area 6140732594520600
Volume 3.2741864231713E+22
Space diagonal 55410886.089832

Equilateral Triangle

Length = n
Perimeter 95974470
Area 4.431692020585E+14
Altitude 27705443.044916

Triangular Pyramid

Length = n
Surface area 4.431692020585E+14
Volume 3.858665704489E+21
Height 15080933.012841