81590775 is an odd 8-digits composite number following 81590774
and preceding 81590776 . In scientific notation, it is written as 8.1590775 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 34298880 positive integers (up to 81590775) that are relatively prime to 81590775.
81590775 has 32 divisors, whose sum is 110816640
The reverse of 81590775 is 57709518
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million five hundred ninety thousand seven hundred seventy-five
Scientific notation
8.1590775 × 10^7
Engineering notation
8.1590775 × 10^6
Prime Factorization
21 × 1165 × 5 × 23 × 29
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81590775
Product of the distinct prime numbers
The prime factorization of 81590775 is 21 × 1165 × 5 × 23 × 29.
Since it has a total of 5 prime factors.
7 , 1 , 94 , 18 , 520 , 512 , 1406 , 4671 , 91601 , 71598 , 172517 , 866400 , 6536783 , 1898641 , 14893119 , 86867985 , 374255016 , 570708794 , 6231898144 , 9552704079
n×2
163181550
n×3
244772325
n×4
326363100
n×5
407953875
n÷2
40795387.5
n÷3
27196925
n÷3
20397693.75
n÷5
16318155
n2
6657054565100625
n3
5.4315424118385E+23
n4
4.4316375482727E+31
n5
3.6158074208267E+39
2 √n
9032.7612057443
3 √n
433.7242314307
4 √n
95.040839672976
5 √n
38.223302870591
1 , 5 , 21 , 23 , 29 , 105 , 115 , 145 , 483 , 609 , 667 , 1165 , 2415 , 3045 , 3335 , 5825 , 14007 , 24465 , 26795 , 33785 , 70035 , 122325 , 133975 , 168925 , 562695 , 709485 , 777055 , 2813475 , 3547425 , 3885275 , 16318155 , 81590775
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81590774
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81590775 can be divided by 32 positive divisors.
The sum of these divisors (counting 81590775) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111001111100111110111
3
Ternary
12200112020111120
4
Quaternary
10313033213313
5
Quinary
131341401100
6
Senary
12032435023
8
Octal
467174767
10
Decimal
81590775
12
Duodecimal
233a8a73
16
Hexadecimal
4dcf9f7
20
Vigesimal
159igif
36
Base36
1ckruf
md5
fa5ae7be86da3cb57381e8954d9ca113
sha1
cbd1b80bdc6b1e4ccd803ee599216c377e16db87
sha256
45ccd6b25a99ccd33f86e22a9cd79c1cffdd60581a85d24aa7f39921c87daea4
sha512
a298159e5ea0d2c5f40b6dcc9779bc6d3daff3022cdd9e7021aacbd16fe62fef0a55b39ba05226ab9c3bccd1c867bdbdaa20c52b1a6c4bfe9195477006c90afb
ripemd-160
4394b48d9c0e7b976e7c4e0a27a16d3a8a4db5f9
Diameter
163181550
Circumference
512649958.6814
Area
2.0913753716267E+16
Volume
2.2751591651591E+24
Surface area
8.3655014865066E+16
Circumference
512649958.6814
Perimeter
326363100
Area
6657054565100625
Diagonal
115386780.56953
Surface area
39942327390603750
Volume
5.4315424118385E+23
Space diagonal
141319367.72892
Perimeter
244772325
Area
2.8825891838782E+15
Altitude
70659683.86446
Surface area
2.8825891838782E+15
Volume
6.4011341195222E+22
Height
38462260.189844