81686722 (number)

81686722 is an even 8-digits composite number following 81686721 and preceding 81686723. In scientific notation, it is written as 8.1686722 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 37654272 positive integers (up to 81686722) that are relatively prime to 81686722.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred eighty-six thousand seven hundred twenty-two

Notation

Scientific notation 8.1686722 × 10^7
Engineering notation 8.1686722 × 10^6

Prime Factorization of 81686722

Prime Factorization 2 × 1109 × 13 × 2833

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81686722
Product of the distinct prime numbers

The prime factorization of 81686722 is 2 × 1109 × 13 × 2833. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 7, 38, 72, 15, 818, 7428, 8701, 93972, 4502, 521614, 505104, 1527848, 9434883, 69621774, 79627695, 377747118, 282788124, 3281915863, 6720451786

Basic calculations (n = 81686722)

Multiplication

n×y
n×2 163373444
n×3 245060166
n×4 326746888
n×5 408433610

Division

n÷y
n÷2 40843361
n÷3 27228907.333333
n÷3 20421680.5
n÷5 16337344.4

Exponentiation

ny
n2 6672720551105284
n3 5.4507266864182E+23
n4 4.4525199553143E+31
n5 3.6371175978921E+39

Nth Root

y√n
2√n 9038.0707012061
3√n 433.89417808304
4√n 95.068768274371
5√n 38.232288414297

Divisors of 81686722

1, 2, 13, 26, 1109, 2218, 2833, 5666, 14417, 28834, 36829, 73658, 3141797, 6283594, 40843361, 81686722

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 -81686721
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 81686722 can be divided by 16 positive divisors. The sum of these divisors (counting 81686722) is 1, the average is 0.0625.

Base conversion 81686722

Base System Value
2 Binary 100110111100111000011000010
3 Ternary 12200201010010011
4 Quaternary 10313213003002
5 Quinary 131402433342
6 Senary 12034455134
8 Octal 467470302
10 Decimal 81686722
12 Duodecimal 234344aa
16 Hexadecimal 4de70c2
20 Vigesimal 15aagg2
36 Base36 1cmtvm

Cryptographic Hash Functions

md5 360a3eddd0849057da7a51d6db64e4a7
sha1 42ca3f03cb94fd0a10d3249357fa3497dbf04dfb
sha256 4575b8935c86161fd9f98c40252abd5b69ba2a0d791509b7c0ab40aa49c1dbce
sha512 fa73241d7d05586f08053804a4e5d06ea741a0dc1a8d8f63ac69fac0d58eff8b385f02e839f5c534889825156b3ebd84ebf31e8b70dacf1c15e5d0f00ab1820b
ripemd-160 92074594c9912ba6fbaaffe6c38173d816c44b96

81686722 as geometric shapes

Circle

Radius = n
Diameter 163373444
Circumference 513252811.46206
Area 2.096296986281E+16

Sphere

Radius = n
Volume 2.2831950553037E+24
Surface area 8.385187945124E+16
Circumference 513252811.46206

Square

Length = n
Perimeter 326746888
Area 6672720551105284
Diagonal 115522470.1182

Cube

Length = n
Surface area 40036323306631704
Volume 5.4507266864182E+23
Space diagonal 141485552.80775

Equilateral Triangle

Length = n
Perimeter 245060166
Area 2.8893727548058E+15
Altitude 70742776.403877

Triangular Pyramid

Length = n
Surface area 2.8893727548058E+15
Volume 6.4237430039347E+22
Height 38507490.0394