81126049 is an odd 8-digits composite number following 81126048
and preceding 81126050 . In scientific notation, it is written as 8.1126049 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 3 positive divisors.
There are 81117042 positive integers (up to 81126049) that are relatively prime to 81126049.
81126049 has 3 divisors, whose sum is 81135057
The reverse of 81126049 is 94062118
Previous prime number is 9007
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million one hundred twenty-six thousand forty-nine
Scientific notation
8.1126049 × 10^7
Engineering notation
8.1126049 × 10^6
Prime Factorization
9007 × 9007
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
9007
Product of the distinct prime numbers
The prime factorization of 81126049 is 9007 × 9007.
Since it has a total of 2 prime factors.
5 , 9 , 19 , 27 , 214 , 732 , 3215 , 1256 , 79414 , 56096 , 859941 , 542758 , 631390 , 7481600 , 49786869 , 32568328 , 782211799 , 511925798 , 1315425097 , 33951163
n×2
162252098
n×3
243378147
n×4
324504196
n×5
405630245
n÷2
40563024.5
n÷3
27042016.333333
n÷3
20281512.25
n÷5
16225209.8
n2
6581435826350401
n3
5.3392588533886E+23
n4
4.3315297536369E+31
n5
3.513998950385E+39
2 √n
9007
3 √n
432.89919195303
4 √n
94.905215873523
5 √n
38.179660749906
3 divisors
τ
Total Divisors
3
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81126048
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.33333333333333
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
3
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81126049 can be divided by 3 positive divisors.
The sum of these divisors (counting 81126049) is 1, the average is 0.33333333333333.
Base
System
Value
2
Binary
100110101011110001010100001
3
Ternary
12122122122000111
4
Quaternary
10311132022201
5
Quinary
131232013144
6
Senary
12014451321
8
Octal
465361241
10
Decimal
81126049
12
Duodecimal
23203b41
16
Hexadecimal
4d5e2a1
20
Vigesimal
1570f29
36
Base36
1cat9d
md5
f471413680dea8ae6d1ec87422649b5d
sha1
e10814889c336b05371e56113fa9e9887f95fe95
sha256
e0e3464031ab37d9430603e13ea41ef0bfb76bd6eaa6e7b6c03868892dc4641c
sha512
b7bab59024d9d029eb3fcfd38472b040cbd1077b3a2f6cae2e61716a7616c1bd06f5b6040c6808236b71389c402c5dea82ae60086ea3a505c6c172f5bc61f432
ripemd-160
c374c9d09d1d204088e9b022ed0a1989d0cb1828
Diameter
162252098
Circumference
509729999.10633
Area
2.0676190442135E+16
Volume
2.2365035185893E+24
Surface area
8.270476176854E+16
Circumference
509729999.10633
Perimeter
324504196
Area
6581435826350401
Diagonal
114729558.75754
Surface area
39488614958102406
Volume
5.3392588533886E+23
Space diagonal
140514438.68532
Perimeter
243378147
Area
2.8498453094982E+15
Altitude
70257219.342661
Surface area
2.8498453094982E+15
Volume
6.2923769029023E+22
Height
38243186.252515