81129822 is an even 8-digits composite number following 81129821
and preceding 81129823 . In scientific notation, it is written as 8.1129822 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 27043272 positive integers (up to 81129822) that are relatively prime to 81129822.
81129822 has 8 divisors, whose sum is 162259656
The reverse of 81129822 is 22892118
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million one hundred twenty-nine thousand eight hundred twenty-two
Scientific notation
8.1129822 × 10^7
Engineering notation
8.1129822 × 10^6
Prime Factorization
2 × 3 × 13521637
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81129822
Product of the distinct prime numbers
The prime factorization of 81129822 is 2 × 3 × 13521637.
Since it has a total of 3 prime factors.
4 , 8 , 28 , 76 , 732 , 705 , 4670 , 9248 , 32249 , 10059 , 506499 , 588461 , 6557288 , 2230462 , 29028446 , 16610785 , 90315657 , 882478554 , 473489537 , 942044296
n×2
162259644
n×3
243389466
n×4
324519288
n×5
405649110
n÷2
40564911
n÷3
27043274
n÷3
20282455.5
n÷5
16225964.4
n2
6582048017751684
n3
5.3400038407565E+23
n4
4.3323356107989E+31
n5
3.5148161694838E+39
2 √n
9007.2094457718
3 √n
432.90590292257
4 √n
94.906319314215
5 √n
38.180015874264
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81129821
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81129822 can be divided by 8 positive divisors.
The sum of these divisors (counting 81129822) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011111000101011110
3
Ternary
12122122211012020
4
Quaternary
10311133011132
5
Quinary
131232123242
6
Senary
12014521010
8
Octal
465370536
10
Decimal
81129822
12
Duodecimal
23206166
16
Hexadecimal
4d5f15e
20
Vigesimal
15714b2
36
Base36
1caw66
md5
fffaa01bb6a9685e12c200b0ad2c8404
sha1
35e09fb8988449748c62e501d3a239e2ec3a7148
sha256
c1c4979953e17d631cc56974e3df96ff5a951761b77c5a22baf7b305edb4b214
sha512
e47b129604af267d30e8b427ddd80f8952234a3a6d8a75e5bbfa08ee8c98aa78248342798be7722b2cdbad6ab8c3c53c355cfa495144924fc2759645ab48fbac
ripemd-160
c2a343e743265c1b22b9cef9a702a6429346e730
Diameter
162259644
Circumference
509753705.5645
Area
2.0678113698144E+16
Volume
2.2368155781682E+24
Surface area
8.2712454792576E+16
Circumference
509753705.5645
Perimeter
324519288
Area
6582048017751684
Diagonal
114734894.58532
Surface area
39492288106510104
Volume
5.3400038407565E+23
Space diagonal
140520973.71302
Perimeter
243389466
Area
2.850110396151E+15
Altitude
70260486.85651
Surface area
2.850110396151E+15
Volume
6.2932548789352E+22
Height
38244964.861772