81007158 is an even 8-digits composite number following 81007157
and preceding 81007159 . In scientific notation, it is written as 8.1007158 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 27002384 positive integers (up to 81007158) that are relatively prime to 81007158.
81007158 has 8 divisors, whose sum is 162014328
The reverse of 81007158 is 85170018
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million seven thousand one hundred fifty-eight
Scientific notation
8.1007158 × 10^7
Engineering notation
8.1007158 × 10^6
Prime Factorization
2 × 3 × 13501193
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81007158
Product of the distinct prime numbers
The prime factorization of 81007158 is 2 × 3 × 13501193.
Since it has a total of 3 prime factors.
5 , 3 , 82 , 3 , 722 , 299 , 6598 , 937 , 51926 , 41421 , 837442 , 654376 , 5932510 , 3661648 , 74740835 , 69540588 , 509439319 , 519142264 , 5141101996 , 7731697787
n×2
162014316
n×3
243021474
n×4
324028632
n×5
405035790
n÷2
40503579
n÷3
27002386
n÷3
20251789.5
n÷5
16201431.6
n2
6562159647236964
n3
5.3158190336495E+23
n4
4.3061939235825E+31
n5
3.4883253154629E+39
2 √n
9000.3976578816
3 √n
432.68761592968
4 √n
94.87042562296
5 √n
38.16846365267
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
-81007157
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 81007158 can be divided by 8 positive divisors.
The sum of these divisors (counting 81007158) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101000001001000110110
3
Ternary
12122102120221010
4
Quaternary
10311001020312
5
Quinary
131214212113
6
Senary
12012133050
8
Octal
465011066
10
Decimal
81007158
12
Duodecimal
23167186
16
Hexadecimal
4d41236
20
Vigesimal
1565hhi
36
Base36
1c89iu
md5
e360a84fb7206b8a50926001130d9a85
sha1
ae35c1a6ec4fb36ee2db169e508b09e8a58a78c3
sha256
1580321e50d73200d9f8b340794a6c676347bd22cae7aeb66c34e43e6aed1f5b
sha512
5387b5160b91587d5e5e0a83218d7eb79485993d0c0becbc53d49e544e398a0950c5156ed3b7a50e14ed6188da37fe1bd6f422838bc9eb4490f6ae47d855ce5b
ripemd-160
37e622aa3a05545d248489559052cdce1e0485dd
Diameter
162014316
Circumference
508982984.92198
Area
2.0615632539443E+16
Volume
2.2266850698568E+24
Surface area
8.2462530157772E+16
Circumference
508982984.92198
Perimeter
324028632
Area
6562159647236964
Diagonal
114561421.4929
Surface area
39372957883421784
Volume
5.3158190336495E+23
Space diagonal
140308513.43276
Perimeter
243021474
Area
2.8414984790982E+15
Altitude
70154256.71638
Surface area
2.8414984790982E+15
Volume
6.2647528104235E+22
Height
38187140.497633