81232011 is an odd 8-digits composite number following 81232010
and preceding 81232012 . In scientific notation, it is written as 8.1232011 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 43973280 positive integers (up to 81232011) that are relatively prime to 81232011.
81232011 has 16 divisors, whose sum is 101346560
The reverse of 81232011 is 11023218
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
eighty-one million two hundred thirty-two thousand eleven
Scientific notation
8.1232011 × 10^7
Engineering notation
8.1232011 × 10^6
Prime Factorization
27 × 7 × 19 × 22621
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81232011
Product of the distinct prime numbers
The prime factorization of 81232011 is 27 × 7 × 19 × 22621.
Since it has a total of 4 prime factors.
2 , 9 , 13 , 36 , 47 , 730 , 4330 , 9334 , 86534 , 23466 , 261204 , 715697 , 1212615 , 2418699 , 61757444 , 10318164 , 889115297 , 606302926 , 9692895647 , 6826023959
n×2
162464022
n×3
243696033
n×4
324928044
n×5
406160055
n÷2
40616005.5
n÷3
27077337
n÷3
20308002.75
n÷5
16246402.2
n2
6598639611104121
n3
5.3602076547425E+23
n4
4.3542044717232E+31
n5
3.5370078554327E+39
2 √n
9012.8802832391
3 √n
433.08758564392
4 √n
94.936190587358
5 √n
38.189629141741
1 , 7 , 19 , 27 , 133 , 189 , 513 , 3591 , 22621 , 158347 , 429799 , 610767 , 3008593 , 4275369 , 11604573 , 81232011
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
-81232010
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 81232011 can be divided by 16 positive divisors.
The sum of these divisors (counting 81232011) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101111000000010001011
3
Ternary
12122212000101000
4
Quaternary
10311320002023
5
Quinary
131243411021
6
Senary
12021030043
8
Octal
465700213
10
Decimal
81232011
12
Duodecimal
23255323
16
Hexadecimal
4d7808b
20
Vigesimal
157e00b
36
Base36
1cd30r
md5
1c7599f76c8fe4f0da634a0e0086d1d3
sha1
07fc98edc67f7874c1a97dc7597786ac04207766
sha256
2647bd5b0f1d0cc7ba176e2026c989feb194685fb299aeb5328827efbb555dd2
sha512
b31d0c539688f32fd0bcd847aa9d06c142db966cfe99dc6e828c96a3fe6c0b348400964e30ab085e605456e2572f6825935cebe7eec8d7b95dab6647bc5723a2
ripemd-160
13a5b03ac5b5ddd1dcb1e1e78af254c9b4968bf2
Diameter
162464022
Circumference
510395777.98785
Area
2.0730237725931E+16
Volume
2.2452785319806E+24
Surface area
8.2920950903725E+16
Circumference
510395777.98785
Perimeter
324928044
Area
6598639611104121
Diagonal
114879411.65504
Surface area
39591837666624726
Volume
5.3602076547425E+23
Space diagonal
140697970.25299
Perimeter
243696033
Area
2.8572947668172E+15
Altitude
70348985.126497
Surface area
2.8572947668172E+15
Volume
6.3170653020607E+22
Height
38293137.218347