81707031 (number)

81707031 is an odd 8-digits composite number following 81707030 and preceding 81707032. In scientific notation, it is written as 8.1707031 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 46584720 positive integers (up to 81707031) that are relatively prime to 81707031.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1707031 × 10^7
Engineering notation 8.1707031 × 10^6

Prime Factorization of 81707031

Prime Factorization 3 × 21 × 547 × 2371

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81707031
Product of the distinct prime numbers

The prime factorization of 81707031 is 3 × 21 × 547 × 2371. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 3, 38, 91, 481, 61, 4768, 8646, 96179, 44253, 186801, 281906, 3371060, 1291579, 14109416, 32176290, 854386786, 891842863, 469153533, 6719909713

Basic calculations (n = 81707031)

Multiplication

n×y
n×2 163414062
n×3 245121093
n×4 326828124
n×5 408535155

Division

n÷y
n÷2 40853515.5
n÷3 27235677
n÷3 20426757.75
n÷5 16341406.2

Exponentiation

ny
n2 6676038914834961
n3 5.4547931857163E+23
n4 4.4569495592391E+31
n5 3.6416411580218E+39

Nth Root

y√n
2√n 9039.1941565606
3√n 433.93013344384
4√n 95.074676736556
5√n 38.234189291992

Divisors of 81707031

1, 3, 21, 63, 547, 1641, 2371, 7113, 11487, 34461, 49791, 149373, 1296937, 3890811, 27235677, 81707031

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 -81707030
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 81707031 can be divided by 16 positive divisors. The sum of these divisors (counting 81707031) is 1, the average is 0.0625.

Base conversion 81707031

Base System Value
2 Binary 100110111101100000000010111
3 Ternary 12200202010222100
4 Quaternary 10313230000113
5 Quinary 131404111111
6 Senary 12035133143
8 Octal 467540027
10 Decimal 81707031
12 Duodecimal 234441b3
16 Hexadecimal 4dec017
20 Vigesimal 15ad7bb
36 Base36 1cn9jr

Cryptographic Hash Functions

md5 b07f95f3a685d72ea3d797d8779dd8aa
sha1 b100c57abb0f6accfe354b023314603bea121a71
sha256 05c264ea0d29e77e02949ed13ac6ee99e4fbeac0241fed603b98cee99e345700
sha512 db7f393aae7f52ca1d8cfbda15f8f363a5ad429f37496f168a7986792e23028c114c09e385f24f08bed77100e3b9f5abd06d119cf6b5c71b832eda2f4f97e1b2
ripemd-160 88b66114ec070754631c808e4fda71190b6d81eb

81707031 as geometric shapes

Circle

Radius = n
Diameter 163414062
Circumference 513380416.67247
Area 2.0973394809925E+16

Sphere

Radius = n
Volume 2.2848984265464E+24
Surface area 8.38935792397E+16
Circumference 513380416.67247

Square

Length = n
Perimeter 326828124
Area 6676038914834961
Diagonal 115551191.38144

Cube

Length = n
Surface area 40056233489009766
Volume 5.4547931857163E+23
Space diagonal 141520729.02761

Equilateral Triangle

Length = n
Perimeter 245121093
Area 2.8908096484503E+15
Altitude 70760364.513803

Triangular Pyramid

Length = n
Surface area 2.8908096484503E+15
Volume 6.4285354193169E+22
Height 38517063.793813