68091381 is an odd 8-digits composite number following 68091380
and preceding 68091382 . In scientific notation, it is written as 6.8091381 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 44924544 positive integers (up to 68091381) that are relatively prime to 68091381.
68091381 has 16 divisors, whose sum is 101920000
The reverse of 68091381 is 18319086
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixty-eight million ninety-one thousand three hundred eighty-one
Scientific notation
6.8091381 × 10^7
Engineering notation
6.8091381 × 10^6
Prime Factorization
97 × 9 × 3 × 25999
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68091381
Product of the distinct prime numbers
The prime factorization of 68091381 is 97 × 9 × 3 × 25999.
Since it has a total of 4 prime factors.
6 , 3 , 48 , 36 , 564 , 630 , 94 , 3104 , 6044 , 2441 , 678150 , 854993 , 1863833 , 2358027 , 82003437 , 16051344 , 292535271 , 493857557 , 2954562227 , 4703122269
n×2
136182762
n×3
204274143
n×4
272365524
n×5
340456905
n÷2
34045690.5
n÷3
22697127
n÷3
17022845.25
n÷5
13618276.2
n2
4636436166487161
n3
3.1570134149446E+23
n4
2.149654032591E+31
n5
1.4637291175134E+39
2 √n
8251.7501779925
3 √n
408.34826449173
4 √n
90.839144524773
5 √n
36.865355690167
1 , 3 , 9 , 27 , 97 , 291 , 873 , 2619 , 25999 , 77997 , 233991 , 701973 , 2521903 , 7565709 , 22697127 , 68091381
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
-68091380
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 68091381 can be divided by 16 positive divisors.
The sum of these divisors (counting 68091381) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000011101111110111110101
3
Ternary
11202010101211000
4
Quaternary
10003233313311
5
Quinary
114412411011
6
Senary
10431233513
8
Octal
403576765
10
Decimal
68091381
12
Duodecimal
1a978899
16
Hexadecimal
40efdf5
20
Vigesimal
115b891
36
Base36
14jfn9
md5
cf2f1ca45f02af115bc4b1d0eca7af19
sha1
c067b50e6336145b8c346a8eaa036a36b95c228f
sha256
2477ad079b5ebe14c9dde068e83bcb5f50a5c44df829d7391a522f0a057ba78f
sha512
4764682879204dc08a82d046ffda6af10d03482f68bc9681c3848de2f9c797956fc189f848594966dab4c1405e16cba5569f1bee1bd4f3fa549a7494a4f263c6
ripemd-160
8f44ce14583a5b1139fc56db7b7270f42b1a2c5e
Diameter
136182762
Circumference
427830764.64477
Area
1.4565793799474E+16
Volume
1.3224066868899E+24
Surface area
5.8263175197896E+16
Circumference
427830764.64477
Perimeter
272365524
Area
4636436166487161
Diagonal
96295754.490914
Surface area
27818616998922966
Volume
3.1570134149446E+23
Space diagonal
117937731.44953
Perimeter
204274143
Area
2.0076357516014E+15
Altitude
58968865.724765
Surface area
2.0076357516014E+15
Volume
3.720575990007E+22
Height
32098584.830305