81593538 is an even 8-digits composite number following 81593537
and preceding 81593539 . In scientific notation, it is written as 8.1593538 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 24710400 positive integers (up to 81593538) that are relatively prime to 81593538.
81593538 has 32 divisors, whose sum is 166741440
The reverse of 81593538 is 83539518
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million five hundred ninety-three thousand five hundred thirty-eight
Scientific notation
8.1593538 × 10^7
Engineering notation
8.1593538 × 10^6
Prime Factorization
2 × 3 × 169 × 67 × 1201
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81593538
Product of the distinct prime numbers
The prime factorization of 81593538 is 2 × 3 × 169 × 67 × 1201.
Since it has a total of 5 prime factors.
8 , 1 , 65 , 44 , 115 , 484 , 5715 , 2445 , 924 , 44292 , 789708 , 162301 , 9955626 , 222604 , 80357831 , 5647354 , 186872811 , 31463883 , 7514691394 , 7458005228
n×2
163187076
n×3
244780614
n×4
326374152
n×5
407967690
n÷2
40796769
n÷3
27197846
n÷3
20398384.5
n÷5
16318707.6
n2
6657505443357444
n3
5.4320942337779E+23
n4
4.4322378728334E+31
n5
3.6164196930207E+39
2 √n
9032.9141477156
3 √n
433.72912727227
4 √n
95.041644281418
5 √n
38.223561746806
1 , 2 , 3 , 6 , 67 , 134 , 169 , 201 , 338 , 402 , 507 , 1014 , 1201 , 2402 , 3603 , 7206 , 11323 , 22646 , 33969 , 67938 , 80467 , 160934 , 202969 , 241401 , 405938 , 482802 , 608907 , 1217814 , 13598923 , 27197846 , 40796769 , 81593538
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
-81593537
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 81593538 can be divided by 32 positive divisors.
The sum of these divisors (counting 81593538) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111010000010011000010
3
Ternary
12200112101021220
4
Quaternary
10313100103002
5
Quinary
131341443123
6
Senary
12032455510
8
Octal
467202302
10
Decimal
81593538
12
Duodecimal
233aa596
16
Hexadecimal
4dd04c2
20
Vigesimal
159j3gi
36
Base36
1cktz6
md5
2353cdf1b3b6a978720cfc8e79b1b694
sha1
272e72d4bf7f9cafa32538237a85682803141631
sha256
c347048e76006cbda0e1c97dc24fc918fde47b5aaf84862a8a10eebaa95dc883
sha512
0df6e6447d19e4867a0f1dd8006ddd6ce28c0b1e4950a27368583155586ab40a2df1465398779639f82b6f217065e732eb1a1a2946d930ca1aa9dc35699c69b7
ripemd-160
28505ee8dd0eea7ee6490544d5e367c6c0391eb9
Diameter
163187076
Circumference
512667319.1224
Area
2.0915170192086E+16
Volume
2.2753903117926E+24
Surface area
8.3660680768343E+16
Circumference
512667319.1224
Perimeter
326374152
Area
6657505443357444
Diagonal
115390688.0416
Surface area
39945032660144664
Volume
5.4320942337779E+23
Space diagonal
141324153.3853
Perimeter
244780614
Area
2.8827844198904E+15
Altitude
70662076.692651
Surface area
2.8827844198904E+15
Volume
6.4017844479145E+22
Height
38463562.680535