31249985 (number)

31249985 is an odd 8-digits composite number following 31249984 and preceding 31249986. In scientific notation, it is written as 3.1249985 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 22072512 positive integers (up to 31249985) that are relatively prime to 31249985.

Interesting facts

Basic properties

Name

Name thirty-one million two hundred forty-nine thousand nine hundred eighty-five

Notation

Scientific notation 3.1249985 × 10^7
Engineering notation 3.1249985 × 10^6

Prime Factorization of 31249985

Prime Factorization 5 × 23 × 13 × 20903

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 31249985
Product of the distinct prime numbers

The prime factorization of 31249985 is 5 × 23 × 13 × 20903. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 86, 61, 674, 202, 5290, 5105, 57782, 31041, 594977, 631144, 4408453, 487980, 84192601, 22268826, 846757596, 20593042, 3796829348, 1512211714

Basic calculations (n = 31249985)

Multiplication

n×y
n×2 62499970
n×3 93749955
n×4 124999940
n×5 156249925

Division

n÷y
n÷2 15624992.5
n÷3 10416661.666667
n÷3 7812496.25
n÷5 6249997

Exponentiation

ny
n2 976561562500225
n3 3.0517534179709E+22
n4 9.5367248535288E+29
n5 2.980225086219E+37

Nth Root

y√n
2√n 5590.1686021085
3√n 314.98021207687
4√n 74.767430088967
5√n 31.547864195414

Divisors of 31249985

1, 5, 13, 23, 65, 115, 299, 1495, 20903, 104515, 271739, 480769, 1358695, 2403845, 6249997, 31249985

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 -31249984
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 31249985 can be divided by 16 positive divisors. The sum of these divisors (counting 31249985) is 1, the average is 0.0625.

Base conversion 31249985

Base System Value
2 Binary 1110111001101011001000001
3 Ternary 2011210122220212
4 Quaternary 1313031121001
5 Quinary 30444444420
6 Senary 3033443505
8 Octal 167153101
10 Decimal 31249985
12 Duodecimal a570595
16 Hexadecimal 1dcd641
20 Vigesimal 9f64j5
36 Base36 ilsn5

Cryptographic Hash Functions

md5 8b6027fa01cb1344809f644528dc6d17
sha1 44dc80439b892ff5251383b182ff2e8dea1eb85f
sha256 cc3f97c99120044571e567cc739cbee816da605a8f4b630b32fef7b5cea09462
sha512 7bb0a79b8ebcbd5e4b63d0353b918c6dad3fc73b7d28b19d7e4d46f371c0bb317012cce809c2d4b1ac5dae94aa12ec4631b858b4655cce3ad4ba91468b9ebc19
ripemd-160 21e5664255c2b9623968c8b669e0b3d813f7f863

31249985 as geometric shapes

Circle

Radius = n
Diameter 62499970
Circumference 196349446.60158
Area 3.0679586305289E+15

Sphere

Radius = n
Volume 1.278315482462E+23
Surface area 1.2271834522116E+16
Circumference 196349446.60158

Square

Length = n
Perimeter 124999940
Area 976561562500225
Diagonal 44194152.610956

Cube

Length = n
Surface area 5859369375001350
Volume 3.0517534179709E+22
Space diagonal 54126561.755765

Equilateral Triangle

Length = n
Perimeter 93749955
Area 4.2286356074231E+14
Altitude 27063280.877883

Triangular Pyramid

Length = n
Surface area 4.2286356074231E+14
Volume 3.5965258939274E+21
Height 14731384.203652