81717768 (number)

81717768 is an even 8-digits composite number following 81717767 and preceding 81717769. In scientific notation, it is written as 8.1717768 × 10^7. The sum of its digits is 45. It has a total of 8 prime factors and 64 positive divisors. There are 24494400 positive integers (up to 81717768) that are relatively prime to 81717768.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred seventeen thousand seven hundred sixty-eight

Notation

Scientific notation 8.1717768 × 10^7
Engineering notation 8.1717768 × 10^6

Prime Factorization of 81717768

Prime Factorization 2 × 2 × 2 × 3 × 3 × 3 × 1793 × 211

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2269938
Product of the distinct prime numbers

The prime factorization of 81717768 is 2 × 2 × 2 × 3 × 3 × 3 × 1793 × 211. Since it has a total of 8 prime factors.

Most popular turbo-numbers

5, 8, 82, 85, 940, 89, 4730, 3166, 28955, 37251, 643964, 422927, 3444155, 4175673, 95380363, 38700068, 193973837, 927477658, 2019923052, 8697103155

Basic calculations (n = 81717768)

Multiplication

n×y
n×2 163435536
n×3 245153304
n×4 326871072
n×5 408588840

Division

n÷y
n÷2 40858884
n÷3 27239256
n÷3 20429442
n÷5 16343553.6

Exponentiation

ny
n2 6677793606901824
n3 5.4569438872069E+23
n4 4.4592927456379E+31
n5 3.6440345003212E+39

Nth Root

y√n
2√n 9039.7880506127
3√n 433.9491399835
4√n 95.077799988287
5√n 38.235194098822

Divisors of 81717768

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 211, 216, 422, 633, 844, 1266, 1688, 1793, 1899, 2532, 3586, 3798, 5064, 5379, 5697, 7172, 7596, 10758, 11394, 14344, 15192, 16137, 21516, 22788, 32274, 43032, 45576, 48411, 64548, 96822, 129096, 193644, 378323, 387288, 756646, 1134969, 1513292, 2269938, 3026584, 3404907, 4539876, 6809814, 9079752, 10214721, 13619628, 20429442, 27239256, 40858884, 81717768

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81717767
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81717768 can be divided by 64 positive divisors. The sum of these divisors (counting 81717768) is 1, the average is 0.015625.

Base conversion 81717768

Base System Value
2 Binary 100110111101110101000001000
3 Ternary 12200202200201000
4 Quaternary 10313232220020
5 Quinary 131404432033
6 Senary 12035255000
8 Octal 467565010
10 Decimal 81717768
12 Duodecimal 2344a460
16 Hexadecimal 4deea08
20 Vigesimal 15aee88
36 Base36 1cnhu0

Cryptographic Hash Functions

md5 0b596812bcb1292aaff2a469f5f73281
sha1 53c45c8f5175acf501b36e9168ecba017e0eaf16
sha256 9f802e8373126406670ae3fc63cd02b127a71388d8106c30a2cff12fcc7f9769
sha512 0cbb374c7e44c45283e2b0b71798cfacb5abbbd0fa7f64400261f4ab032912465c00bee992014fc27b711545a6a8f9e9ed7be26192d8c7babb51a44e03790175
ripemd-160 8175aa30140b226b69c1fd16df0abcfcd7fafbc1

81717768 as geometric shapes

Circle

Radius = n
Diameter 163435536
Circumference 513447879.23311
Area 2.0978907337632E+16

Sphere

Radius = n
Volume 2.2857993102801E+24
Surface area 8.3915629350527E+16
Circumference 513447879.23311

Square

Length = n
Perimeter 326871072
Area 6677793606901824
Diagonal 115566375.79246

Cube

Length = n
Surface area 40066761641410944
Volume 5.4569438872069E+23
Space diagonal 141539326.05713

Equilateral Triangle

Length = n
Perimeter 245153304
Area 2.8915694524031E+15
Altitude 70769663.028563

Triangular Pyramid

Length = n
Surface area 2.8915694524031E+15
Volume 6.4310700453308E+22
Height 38522125.264153