81125562 is an even 8-digits composite number following 81125561
and preceding 81125563 . In scientific notation, it is written as 8.1125562 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 22938624 positive integers (up to 81125562) that are relatively prime to 81125562.
81125562 has 32 divisors, whose sum is 187350912
The reverse of 81125562 is 26552118
Previous prime number is 7
Is Prime? no Number parity even Number length 8 Sum of Digits 30 Digital Root 3
Name
eighty-one million one hundred twenty-five thousand five hundred sixty-two
Scientific notation
8.1125562 × 10^7
Engineering notation
8.1125562 × 10^6
Prime Factorization
2 × 97 × 3 × 7 × 19913
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
81125562 Product of the distinct prime numbers
The prime factorization of 81125562 is 2 × 97 × 3 × 7 × 19913.
Since it has a total of 5 prime factors.
7 , 4 , 52 , 50 , 366 , 413 , 9236 , 497 , 86056 , 33365 , 84482 , 916957 , 7847744 , 2180964 , 56924758 , 32822847 , 885620114 , 935102507 , 5518035644 , 6747789138
n×2
162251124
n×3
243376686
n×4
324502248
n×5
405627810
n÷2
40562781
n÷3
27041854
n÷3
20281390.5
n÷5
16225112.4
n2
6581356809815844
n3
5.3391626991884E+23
n4
4.3314257458109E+31
n5
3.5138934789018E+39
2 √n9006.9729654307
3 √n432.89832571943
4 √n94.905073444104
5 √n38.179614911264
1 , 2 , 3 , 6 , 7 , 14 , 21 , 42 , 97 , 194 , 291 , 582 , 679 , 1358 , 2037 , 4074 , 19913 , 39826 , 59739 , 119478 , 139391 , 278782 , 418173 , 836346 , 1931561 , 3863122 , 5794683 , 11589366 , 13520927 , 27041854 , 40562781 , 81125562
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81125561 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81125562 can be divided by 32 positive divisors.
The sum of these divisors (counting 81125562) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101011110000010111010
3
Ternary
12122122121100110
4
Quaternary
10311132002322
5
Quinary
131232004222
6
Senary
12014445150
8
Octal
465360272
10
Decimal
81125562
12
Duodecimal
232037b6
16
Hexadecimal
4d5e0ba
20
Vigesimal
1570di2
36
Base36
1casvu
md5
baf4b066f22de1fc7bd002da62389d8d
sha1
030ead3d0408899eed49deff3b16c22dba10c5c6
sha256
6184242a32c45ef402ab09521360a2a0e77f89a4b60ca2e781c8b1fb483f0ffa
sha512
7bd3e4e9046b467cbed7ecf591b1f330518c093c055e9a802ea1ea7491d3da145ffe7ce3275c83fe0acba449468d7bca640a3fd3072fa48acc270f916b1515e8
ripemd-160
b319d204cad182ff7283d5d5e9243509712c502e
Diameter
162251124
Circumference
509726939.19509
Area
2.0675942204371E+16
Volume
2.2364632416121E+24
Surface area
8.2703768817482E+16
Circumference
509726939.19509
Perimeter
324502248
Area
6581356809815844
Diagonal
114728870.03554
Surface area
39488140858895064
Volume
5.3391626991884E+23
Space diagonal
140513595.17658
Perimeter
243376686
Area
2.8498110943351E+15
Altitude
70256797.58829
Surface area
2.8498110943351E+15
Volume
6.2922635840906E+22
Height
38242956.678513