72008081 is an odd 8-digits composite number following 72008080
and preceding 72008082 . In scientific notation, it is written as 7.2008081 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 68218164 positive integers (up to 72008081) that are relatively prime to 72008081.
72008081 has 4 divisors, whose sum is 75798000
The reverse of 72008081 is 18080027
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
seventy-two million eight thousand eighty-one
Scientific notation
7.2008081 × 10^7
Engineering notation
7.2008081 × 10^6
Prime Factorization
19 × 3789899
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72008081
Product of the distinct prime numbers
The prime factorization of 72008081 is 19 × 3789899.
Since it has a total of 2 prime factors.
8 , 8 , 53 , 80 , 423 , 405 , 6545 , 5838 , 51345 , 82121 , 324779 , 599974 , 3585537 , 4639845 , 82482670 , 93609796 , 26415586 , 32944222 , 1028433593 , 8575943484
n×2
144016162
n×3
216024243
n×4
288032324
n×5
360040405
n÷2
36004040.5
n÷3
24002693.666667
n÷3
18002020.25
n÷5
14401616.2
n2
5185163729302561
n3
3.7337368981788E+23
n4
2.6885922899675E+31
n5
1.9360037139195E+39
2 √n
8485.7575383698
3 √n
416.03232806274
4 √n
92.118171596975
5 √n
37.280029508671
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
-72008080
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 72008081 can be divided by 4 positive divisors.
The sum of these divisors (counting 72008081) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010010101100000110010001
3
Ternary
12000111101111222
4
Quaternary
10102230012101
5
Quinary
121413224311
6
Senary
11051214425
8
Octal
422540621
10
Decimal
72008081
12
Duodecimal
20147415
16
Hexadecimal
44ac191
20
Vigesimal
12a1041
36
Base36
16vdsh
md5
f4ab4abd6ac9a793a70e932602089221
sha1
f9fe136d6cfb1155d7835b91624633ccf7a6f2a0
sha256
e912d18a94ac6cc524d0de61d1d2e57f5d9e96c47197f20452b2e6ebe7729150
sha512
b9eb0a542b7d0ca7154356fbc7ce5ab1145c45ac3ecd8326debcd032fe619dcc240a26825e26c5b6b44c1e0dbe3a0c4d2b3962565e83c15cf3c984635c590a20
ripemd-160
18582a071ba82a081d884f3c0f140aeaf7d9cebb
Diameter
144016162
Circumference
452440116.5374
Area
1.6289672279637E+16
Volume
1.5639840546341E+24
Surface area
6.5158689118549E+16
Circumference
452440116.5374
Perimeter
288032324
Area
5185163729302561
Diagonal
101834804.75066
Surface area
31110982375815366
Volume
3.7337368981788E+23
Space diagonal
124721654.84754
Perimeter
216024243
Area
2.2452417561788E+15
Altitude
62360827.423768
Surface area
2.2452417561788E+15
Volume
4.4002511331144E+22
Height
33944934.916887