72180987 is an odd 8-digits composite number following 72180986
and preceding 72180988 . In scientific notation, it is written as 7.2180987 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 48120656 positive integers (up to 72180987) that are relatively prime to 72180987.
72180987 has 4 divisors, whose sum is 96241320
The reverse of 72180987 is 78908127
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-two million one hundred eighty thousand nine hundred eighty-seven
Scientific notation
7.2180987 × 10^7
Engineering notation
7.2180987 × 10^6
Prime Factorization
3 × 24060329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72180987
Product of the distinct prime numbers
The prime factorization of 72180987 is 3 × 24060329.
Since it has a total of 2 prime factors.
1 , 3 , 63 , 67 , 468 , 757 , 6250 , 357 , 57812 , 29430 , 638408 , 369026 , 9321541 , 7260949 , 52960674 , 71556856 , 227400368 , 42202499 , 8651227792 , 9561887868
n×2
144361974
n×3
216542961
n×4
288723948
n×5
360904935
n÷2
36090493.5
n÷3
24060329
n÷3
18045246.75
n÷5
14436197.4
n2
5210094884294169
n3
3.76069791112E+23
n4
2.7145088703348E+31
n5
1.9593592948102E+39
2 √n
8495.9394418746
3 √n
416.36505454276
4 √n
92.173420473988
5 √n
37.2979157192
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
-72180986
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 72180987 can be divided by 4 positive divisors.
The sum of these divisors (counting 72180987) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010110010011111011
3
Ternary
12000211011200220
4
Quaternary
10103112103323
5
Quinary
121434242422
6
Senary
11055031123
8
Octal
423262373
10
Decimal
72180987
12
Duodecimal
2020b4a3
16
Hexadecimal
44d64fb
20
Vigesimal
12b2c97
36
Base36
16z37f
md5
2b1059fd619658f0cfac84146a062ac0
sha1
1cc34dc3e48317e498155626d4b3eac18862d400
sha256
5b78708b9a716b2b6192f9cf3323a5320e1f894494a5d24b511eca863e5b7af1
sha512
2824e05d0ecfefcae0e58cd70c63fcdd186f00fca1c434ead1d28c678a3e4aaa3dfb828cfe12c4dceab1f252aee547702ae9fec819f643891bc69f983c573f29
ripemd-160
482a702044490433762f6767a21bf045544073db
Diameter
144361974
Circumference
453526516.97612
Area
1.6367995813004E+16
Volume
1.575277457326E+24
Surface area
6.5471983252017E+16
Circumference
453526516.97612
Perimeter
288723948
Area
5210094884294169
Diagonal
102079330.76088
Surface area
31260569305765014
Volume
3.76069791112E+23
Space diagonal
125021136.82447
Perimeter
216542961
Area
2.256037262963E+15
Altitude
62510568.412234
Surface area
2.256037262963E+15
Volume
4.4320249915784E+22
Height
34026443.586959