81348085 is an odd 8-digits composite number following 81348084
and preceding 81348086 . In scientific notation, it is written as 8.1348085 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 51488640 positive integers (up to 81348085) that are relatively prime to 81348085.
81348085 has 16 divisors, whose sum is 102985344
The reverse of 81348085 is 58084318
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million three hundred forty-eight thousand eighty-five
Scientific notation
8.1348085 × 10^7
Engineering notation
8.1348085 × 10^6
Prime Factorization
35 × 7 × 13 × 25541
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81348085
Product of the distinct prime numbers
The prime factorization of 81348085 is 35 × 7 × 13 × 25541.
Since it has a total of 4 prime factors.
1 , 6 , 30 , 49 , 824 , 533 , 4329 , 4616 , 9831 , 47689 , 602858 , 747375 , 4721993 , 6756589 , 14942434 , 74467693 , 768143441 , 473357038 , 8712503185 , 2437694862
n×2
162696170
n×3
244044255
n×4
325392340
n×5
406740425
n÷2
40674042.5
n÷3
27116028.333333
n÷3
20337021.25
n÷5
16269617
n2
6617510933167225
n3
5.3832184187972E+23
n4
4.3791450950588E+31
n5
3.5623506742017E+39
2 √n
9019.3173244986
3 √n
433.29376989223
4 √n
94.970086471997
5 √n
38.200536889733
1 , 7 , 13 , 35 , 91 , 245 , 455 , 3185 , 25541 , 178787 , 332033 , 893935 , 2324231 , 6257545 , 11621155 , 81348085
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
-81348084
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 81348085 can be divided by 16 positive divisors.
The sum of these divisors (counting 81348085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010100010111110101
3
Ternary
12200001220121001
4
Quaternary
10312110113311
5
Quinary
131311114320
6
Senary
12023323301
8
Octal
466242765
10
Decimal
81348085
12
Duodecimal
232b0531
16
Hexadecimal
4d945f5
20
Vigesimal
1588a45
36
Base36
1cfkl1
md5
3422c4db1faaa5a8c22f470bd2d0d32d
sha1
21aadd1db3adcf1696d491f8343cb06ede945b5b
sha256
c3cbd5f2dac877af40c10a383e386f675b1e920589cc317ce4a9a3bcea97f93e
sha512
dd673b7331d442155733614cdeac59343487a47427edb075201fdf1f38175fa2bd8c5cbe3ec3563f545d36ab2e4fbf190a20028332f504cc2536f7ca2151179b
ripemd-160
11b6c389e8390016b9b45597ed4edbdf796c8e2b
Diameter
162696170
Circumference
511125092.4392
Area
2.0789523732688E+16
Volume
2.2549172582883E+24
Surface area
8.3158094930753E+16
Circumference
511125092.4392
Perimeter
325392340
Area
6617510933167225
Diagonal
115043565.08008
Surface area
39705065599003350
Volume
5.3832184187972E+23
Space diagonal
140899016.31843
Perimeter
244044255
Area
2.865466288972E+15
Altitude
70449508.159216
Surface area
2.865466288972E+15
Volume
6.3441837475663E+22
Height
38347855.026693