81170421 is an odd 8-digits composite number following 81170420
and preceding 81170422 . In scientific notation, it is written as 8.1170421 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 54113612 positive integers (up to 81170421) that are relatively prime to 81170421.
81170421 has 4 divisors, whose sum is 108227232
The reverse of 81170421 is 12407118
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million one hundred seventy thousand four hundred twenty-one
Scientific notation
8.1170421 × 10^7
Engineering notation
8.1170421 × 10^6
Prime Factorization
3 × 27056807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81170421
Product of the distinct prime numbers
The prime factorization of 81170421 is 3 × 27056807.
Since it has a total of 2 prime factors.
6 , 9 , 3 , 99 , 298 , 536 , 4319 , 3828 , 95904 , 52898 , 845498 , 970791 , 6927986 , 5527384 , 22655840 , 67789582 , 404725023 , 881168272 , 6347126507 , 4960910153
n×2
162340842
n×3
243511263
n×4
324681684
n×5
405852105
n÷2
40585210.5
n÷3
27056807
n÷3
20292605.25
n÷5
16234084.2
n2
6588637245317241
n3
5.3480245901868E+23
n4
4.3410140750382E+31
n5
3.5236194003777E+39
2 √n
9009.4628585726
3 √n
432.97810249693
4 √n
94.918190346069
5 √n
38.18383631968
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81170420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81170421 can be divided by 4 positive divisors.
The sum of these divisors (counting 81170421) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101101000111111110101
3
Ternary
12122201212212220
4
Quaternary
10311220333311
5
Quinary
131234423141
6
Senary
12015432553
8
Octal
465507765
10
Decimal
81170421
12
Duodecimal
23225759
16
Hexadecimal
4d68ff5
20
Vigesimal
1576611
36
Base36
1cbrhx
md5
da3c35faa9c67479a0f9b5893fb0c8bc
sha1
10a78978bff54a38801439909ca2663557c3ae42
sha256
f059e6b94d76cc96da4c2bdbd4c87f7b4b105ca88ff4a68fce2b2633ad016eb7
sha512
b84e34c593172bd07ea246425b560861d14c978d63120a524e3e36f2323048713449588a0e54c2eb2c5f6829c5c51d210ee14cc89cbd3962342202b3b5d3b857
ripemd-160
2541fad873e6cc84156abc216f8338dba72c43ca
Diameter
162340842
Circumference
510008796.60478
Area
2.0698814367057E+16
Volume
2.2401753018331E+24
Surface area
8.2795257468227E+16
Circumference
510008796.60478
Perimeter
324681684
Area
6588637245317241
Diagonal
114792310.24173
Surface area
39531823471903446
Volume
5.3480245901868E+23
Space diagonal
140591293.24376
Perimeter
243511263
Area
2.8529636153825E+15
Altitude
70295646.621878
Surface area
2.8529636153825E+15
Volume
6.3027074227892E+22
Height
38264103.413911