81723785 (number)

81723785 is an odd 8-digits composite number following 81723784 and preceding 81723786. In scientific notation, it is written as 8.1723785 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 54863040 positive integers (up to 81723785) that are relatively prime to 81723785.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1723785 × 10^7
Engineering notation 8.1723785 × 10^6

Prime Factorization of 81723785

Prime Factorization 5 × 13 × 11 × 114299

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81723785
Product of the distinct prime numbers

The prime factorization of 81723785 is 5 × 13 × 11 × 114299. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81723785)

Multiplication

n×y
n×2 163447570
n×3 245171355
n×4 326895140
n×5 408618925

Division

n÷y
n÷2 40861892.5
n÷3 27241261.666667
n÷3 20430946.25
n÷5 16344757

Exponentiation

ny
n2 6678777034726225
n3 5.458149384489E+23
n4 4.4606062679586E+31
n5 3.645376276123E+39

Nth Root

y√n
2√n 9040.1208509621
3√n 433.95979049422
4√n 95.079550119687
5√n 38.235757145006

Divisors of 81723785

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 -81723784
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 81723785 can be divided by 16 positive divisors. The sum of these divisors (counting 81723785) is 1, the average is 0.0625.

Base conversion 81723785

Base System Value
2 Binary 100110111110000000110001001
3 Ternary 12200202222221212
4 Quaternary 10313300012021
5 Quinary 131410130120
6 Senary 12035342505
8 Octal 467600611
10 Decimal 81723785
12 Duodecimal 23451a35
16 Hexadecimal 4df0189
20 Vigesimal 15af995
36 Base36 1cnmh5

Cryptographic Hash Functions

md5 9f768bddf8c9ea2c86a481eee0d752b0
sha1 cfc9c42257d26f234f3b5b977233c6bccaf078df
sha256 ce79b652038ff34bf891c9a79680bc64d95e4c05ec20316948beb92f25fc637c
sha512 cde5ec9c9238e27599a663e1e7236aad2720c8606b5f15b14500c5c15c3e7b714089e30264079f46c1eb7c987ef23eccbd9e0f62053c1d3a84b499fd0f1f3c62
ripemd-160 886ccf6e9f77f7d2c9795f045117a319db8d814d

81723785 as geometric shapes

Circle

Radius = n
Diameter 163447570
Circumference 513485685.1591
Area 2.098199686726E+16

Sphere

Radius = n
Volume 2.2863042678009E+24
Surface area 8.3927987469041E+16
Circumference 513485685.1591

Square

Length = n
Perimeter 326895140
Area 6678777034726225
Diagonal 115574885.11546

Cube

Length = n
Surface area 40072662208357350
Volume 5.458149384489E+23
Space diagonal 141549747.80684

Equilateral Triangle

Length = n
Perimeter 245171355
Area 2.8919952891425E+15
Altitude 70774873.903418

Triangular Pyramid

Length = n
Surface area 2.8919952891425E+15
Volume 6.4324907375023E+22
Height 38524961.705154