81596972 is an even 8-digits composite number following 81596971
and preceding 81596973 . In scientific notation, it is written as 8.1596972 × 10^7.
The sum of its digits is 47. It has a total of 5 prime factors and 24 positive divisors.
There are 39614400 positive integers (up to 81596972) that are relatively prime to 81596972.
81596972 has 24 divisors, whose sum is 146978832
The reverse of 81596972 is 27969518
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million five hundred ninety-six thousand nine hundred seventy-two
Scientific notation
8.1596972 × 10^7
Engineering notation
8.1596972 × 10^6
Prime Factorization
2 × 2 × 2621 × 43 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40798486
Product of the distinct prime numbers
The prime factorization of 81596972 is 2 × 2 × 2621 × 43 × 181.
Since it has a total of 5 prime factors.
2 , 7 , 23 , 41 , 108 , 629 , 4030 , 9150 , 59963 , 88183 , 196729 , 879380 , 605706 , 3360475 , 41705494 , 80353232 , 616428738 , 427420463 , 691884431 , 1916889336
n×2
163193944
n×3
244790916
n×4
326387888
n×5
407984860
n÷2
40798486
n÷3
27198990.666667
n÷3
20399243
n÷5
16319394.4
n2
6658065839568784
n3
5.4327801188545E+23
n4
4.4329840724033E+31
n5
3.6171807723234E+39
2 √n
9033.104228337
3 √n
433.73521192458
4 √n
95.042644262126
5 √n
38.223883481847
1 , 2 , 4 , 43 , 86 , 172 , 181 , 362 , 724 , 2621 , 5242 , 7783 , 10484 , 15566 , 31132 , 112703 , 225406 , 450812 , 474401 , 948802 , 1897604 , 20399243 , 40798486 , 81596972
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81596971
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81596972 can be divided by 24 positive divisors.
The sum of these divisors (counting 81596972) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110111010001001000101100
3
Ternary
12200112120000002
4
Quaternary
10313101020230
5
Quinary
131342100342
6
Senary
12032523432
8
Octal
467211054
10
Decimal
81596972
12
Duodecimal
233b0578
16
Hexadecimal
4dd122c
20
Vigesimal
159jc8c
36
Base36
1ckwmk
md5
f8072a050030a6f24ffdf9c7cc85a268
sha1
40d9641c8e2ed09adf62de76477ebea8b7a1f544
sha256
b5815e1206ae396ef2516cc0131f301249eeb805a315b710b93f6ead001ef560
sha512
9850535a57ac820ec7ad92f6f413f59ac9f7e0afd64cabc0567c628879bce9a655fd4863c8db50f2870fbef2a5aa26d7286bc39d0f1202da1653da3acf6ba43c
ripemd-160
160c1cdb5addb44430ae5791401df580033e309d
Diameter
163193944
Circumference
512688895.58074
Area
2.0916930728706E+16
Volume
2.2756776146616E+24
Surface area
8.3667722914826E+16
Circumference
512688895.58074
Perimeter
326387888
Area
6658065839568784
Diagonal
115395544.45098
Surface area
39948395037412704
Volume
5.4327801188545E+23
Space diagonal
141330101.24778
Perimeter
244790916
Area
2.883027078568E+15
Altitude
70665050.623888
Surface area
2.883027078568E+15
Volume
6.4025927712291E+22
Height
38465181.483659