81062012 is an even 8-digits composite number following 81062011
and preceding 81062013 . In scientific notation, it is written as 8.1062012 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 6 positive divisors.
There are 40531004 positive integers (up to 81062012) that are relatively prime to 81062012.
81062012 has 6 divisors, whose sum is 141858528
The reverse of 81062012 is 21026018
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million sixty-two thousand twelve
Scientific notation
8.1062012 × 10^7
Engineering notation
8.1062012 × 10^6
Prime Factorization
2 × 2 × 20265503
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40531006
Product of the distinct prime numbers
The prime factorization of 81062012 is 2 × 2 × 20265503.
Since it has a total of 3 prime factors.
3 , 6 , 87 , 92 , 921 , 454 , 9019 , 4005 , 24871 , 20326 , 323220 , 19225 , 1446137 , 9866571 , 60922188 , 97487757 , 77711772 , 631506064 , 715643170 , 4310600947
n×2
162124024
n×3
243186036
n×4
324248048
n×5
405310060
n÷2
40531006
n÷3
27020670.666667
n÷3
20265503
n÷5
16212402.4
n2
6571049789488144
n3
5.3266251688809E+23
n4
4.3178695335932E+31
n5
3.5001519194657E+39
2 √n
9003.4444519861
3 √n
432.78525870504
4 √n
94.886481924382
5 √n
38.173631408432
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81062011
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81062012 can be divided by 6 positive divisors.
The sum of these divisors (counting 81062012) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110101001110100001111100
3
Ternary
12122112101011202
4
Quaternary
10311032201330
5
Quinary
131222441022
6
Senary
12013235032
8
Octal
465164174
10
Decimal
81062012
12
Duodecimal
23192a78
16
Hexadecimal
4d4e87c
20
Vigesimal
156cf0c
36
Base36
1c9fuk
md5
f425bb93007af009ca7aaa01676615f7
sha1
39c85f64fd9ffe299ed582d55cc7fc7e560fff23
sha256
9bd5ab497dc46b5ea31f486d58ccbeece1ae67276f28fe981be7ee7aac583d67
sha512
15ae3a2d9aaa42d8b28ba6e72a88afe3e7d85cde34b841e98ebbfb6383625177bb38ec2ea08d2ee5aacf2cfd1950dad374c60b3747f7fa5067aed1837098f959
ripemd-160
9f2dfd157adcfad81e83cea5a67ae721b7935f4d
Diameter
162124024
Circumference
509327642.76882
Area
2.0643561745029E+16
Volume
2.2312115331977E+24
Surface area
8.2574246980115E+16
Circumference
509327642.76882
Perimeter
324248048
Area
6571049789488144
Diagonal
114638996.76365
Surface area
39426298736928864
Volume
5.3266251688809E+23
Space diagonal
140403523.34776
Perimeter
243186036
Area
2.8453480236146E+15
Altitude
70201761.673879
Surface area
2.8453480236146E+15
Volume
6.2774879629243E+22
Height
38212998.921217