81532011 is an odd 8-digits composite number following 81532010
and preceding 81532012 . In scientific notation, it is written as 8.1532011 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 49413320 positive integers (up to 81532011) that are relatively prime to 81532011.
81532011 has 4 divisors, whose sum is 84002712
The reverse of 81532011 is 11023518
Previous prime number is 33
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million five hundred thirty-two thousand eleven
Scientific notation
8.1532011 × 10^7
Engineering notation
8.1532011 × 10^6
Prime Factorization
33 × 2470667
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81532011
Product of the distinct prime numbers
The prime factorization of 81532011 is 33 × 2470667.
Since it has a total of 2 prime factors.
6 , 7 , 29 , 31 , 222 , 722 , 4948 , 5459 , 53088 , 88574 , 1836 , 209557 , 8485128 , 2769575 , 68961052 , 25285103 , 937039357 , 402010758 , 3665381254 , 22931304
n×2
163064022
n×3
244596033
n×4
326128044
n×5
407660055
n÷2
40766005.5
n÷3
27177337
n÷3
20383002.75
n÷5
16306402.2
n2
6647468817704121
n3
5.4198150076721E+23
n4
4.4188841682349E+31
n5
3.6028051261225E+39
2 √n
9029.5077938944
3 √n
433.62007957409
4 √n
95.023722269202
5 √n
38.217795381423
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81532010
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81532011 can be divided by 4 positive divisors.
The sum of these divisors (counting 81532011) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111000001010001101011
3
Ternary
12200102020220010
4
Quaternary
10313001101223
5
Quinary
131333011021
6
Senary
12031303003
8
Octal
467012153
10
Decimal
81532011
12
Duodecimal
2337aa63
16
Hexadecimal
4dc146b
20
Vigesimal
159ba0b
36
Base36
1cjii3
md5
f6aef37a1ead20cccaa08b4f2d37f833
sha1
b1ca23de6979bb7c36bf2aee3ebc85545b1d30c3
sha256
7392292e444625e9dd383676e8a8a482d3259a97313680e76d67ae560e8c4754
sha512
360094dc25f3dc99b951ac7f2f2a1fb1ef86d1d6163b4d20cae83e8f3d528c352db51ab8138e8c393c6c69bf01ea4b18190f5c6249f3ee17d0ca7019a2ce768a
ripemd-160
290454615e7928cb926987f956779745ef224c96
Diameter
163064022
Circumference
512280733.58
Area
2.0883639202666E+16
Volume
2.2702468015891E+24
Surface area
8.3534556810666E+16
Circumference
512280733.58
Perimeter
326128044
Area
6647468817704121
Diagonal
115303675.72375
Surface area
39884812906224726
Volume
5.4198150076721E+23
Space diagonal
141217585.49526
Perimeter
244596033
Area
2.8784384334983E+15
Altitude
70608792.747632
Surface area
2.8784384334983E+15
Volume
6.3873132411693E+22
Height
38434558.574584