81707085 (number)

81707085 is an odd 8-digits composite number following 81707084 and preceding 81707086. In scientific notation, it is written as 8.1707085 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 43430400 positive integers (up to 81707085) that are relatively prime to 81707085.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1707085 × 10^7
Engineering notation 8.1707085 × 10^6

Prime Factorization of 81707085

Prime Factorization 15 × 3 × 313 × 5801

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81707085
Product of the distinct prime numbers

The prime factorization of 81707085 is 15 × 3 × 313 × 5801. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 84, 8, 393, 445, 2300, 2829, 34690, 328, 581527, 668298, 1793328, 4612974, 97701595, 87833283, 198778580, 839736603, 8793142795, 1902618726

Basic calculations (n = 81707085)

Multiplication

n×y
n×2 163414170
n×3 245121255
n×4 326828340
n×5 408535425

Division

n÷y
n÷2 40853542.5
n÷3 27235695
n÷3 20426771.25
n÷5 16341417

Exponentiation

ny
n2 6676047739197225
n3 5.4548040009065E+23
n4 4.456961341604E+31
n5 3.6416531918016E+39

Nth Root

y√n
2√n 9039.1971435521
3√n 433.93022903831
4√n 95.074692445214
5√n 38.23419434577

Divisors of 81707085

1, 3, 15, 45, 313, 939, 4695, 5801, 14085, 17403, 87015, 261045, 1815713, 5447139, 27235695, 81707085

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 -81707084
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 81707085 can be divided by 16 positive divisors. The sum of these divisors (counting 81707085) is 1, the average is 0.0625.

Base conversion 81707085

Base System Value
2 Binary 100110111101100000001001101
3 Ternary 12200202011001100
4 Quaternary 10313230001031
5 Quinary 131404111320
6 Senary 12035133313
8 Octal 467540115
10 Decimal 81707085
12 Duodecimal 23444239
16 Hexadecimal 4dec04d
20 Vigesimal 15ad7e5
36 Base36 1cn9l9

Cryptographic Hash Functions

md5 e348a019c1e25838bb5191743f55db2f
sha1 ce3308e508eab7fba70f658f1857d7aa8917b889
sha256 615d43793dba24e3bc817591bccc5e30f640d66b6bbb093fae16ae577839ae20
sha512 3d1e017d02acb35a3d8390a078b371de21a8645cf61a6508baa9caaab21c9e54466236416e81bd4cf396532d3b48fd20884f8fe9e66ba1cad78f913cb1ea2f22
ripemd-160 9e419dd810e97c4ec9a20c65a0f5a6fc43f4e975

81707085 as geometric shapes

Circle

Radius = n
Diameter 163414170
Circumference 513380755.96447
Area 2.0973422532477E+16

Sphere

Radius = n
Volume 2.2849029568027E+24
Surface area 8.3893690129907E+16
Circumference 513380755.96447

Square

Length = n
Perimeter 326828340
Area 6676047739197225
Diagonal 115551267.74897

Cube

Length = n
Surface area 40056286435183350
Volume 5.4548040009065E+23
Space diagonal 141520822.55835

Equilateral Triangle

Length = n
Perimeter 245121255
Area 2.8908134695112E+15
Altitude 70760411.279174

Triangular Pyramid

Length = n
Surface area 2.8908134695112E+15
Volume 6.4285481651408E+22
Height 38517089.249657