81471129 is an odd 8-digits composite number following 81471128
and preceding 81471130 . In scientific notation, it is written as 8.1471129 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 51174288 positive integers (up to 81471129) that are relatively prime to 81471129.
81471129 has 16 divisors, whose sum is 115049472
The reverse of 81471129 is 92117418
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million four hundred seventy-one thousand one hundred twenty-nine
Scientific notation
8.1471129 × 10^7
Engineering notation
8.1471129 × 10^6
Prime Factorization
3 × 23 × 67 × 17623
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81471129
Product of the distinct prime numbers
The prime factorization of 81471129 is 3 × 23 × 67 × 17623.
Since it has a total of 4 prime factors.
5 , 1 , 80 , 52 , 730 , 992 , 1591 , 7898 , 22787 , 33391 , 822197 , 340311 , 7540329 , 1131047 , 5399861 , 87851662 , 552276561 , 41116592 , 5119389107 , 829857046
n×2
162942258
n×3
244413387
n×4
325884516
n×5
407355645
n÷2
40735564.5
n÷3
27157043
n÷3
20367782.25
n÷5
16294225.8
n2
6637544860534641
n3
5.407682735759E+23
n4
4.405700177561E+31
n5
3.5893736750139E+39
2 √n
9026.1358841976
3 √n
433.51212103043
4 √n
95.005978149786
5 √n
38.212086038341
1 , 3 , 23 , 67 , 69 , 201 , 1541 , 4623 , 17623 , 52869 , 405329 , 1180741 , 1215987 , 3542223 , 27157043 , 81471129
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
-81471128
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 81471129 can be divided by 16 positive divisors.
The sum of these divisors (counting 81471129) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110110010011010011001
3
Ternary
12200022011101020
4
Quaternary
10312302122121
5
Quinary
131324034004
6
Senary
12030113053
8
Octal
466623231
10
Decimal
81471129
12
Duodecimal
2334b789
16
Hexadecimal
4db2699
20
Vigesimal
1593hg9
36
Base36
1ci7ix
md5
93b860d7383edb53cd7735210747e578
sha1
d9798a0441bc7f0d30d9a8107e2b334cd08b92ae
sha256
d42ca5e4f7e9f58c8afab2ea9d22456c887f7c5bd11e0df0e1a1c43a2ee20aa8
sha512
2419cd5d7ff7b20d472d5d0ed1d0cfdb7444e98e7ad912e6c7eae7a3121f47932b1c916a4849f0354808a9ebaf9cdb2963cd0e6a171c44c39c10dcec7386f876
ripemd-160
1799c7ac8345828555eebc1b8f422640909f2283
Diameter
162942258
Circumference
511898200.69213
Area
2.0852462171728E+16
Volume
2.265164847414E+24
Surface area
8.3409848686913E+16
Circumference
511898200.69213
Perimeter
325884516
Area
6637544860534641
Diagonal
115217575.57365
Surface area
39825269163207846
Volume
5.407682735759E+23
Space diagonal
141112134.778
Perimeter
244413387
Area
2.8741412339909E+15
Altitude
70556067.388999
Surface area
2.8741412339909E+15
Volume
6.3730152216011E+22
Height
38405858.524549