72180857 is an odd 8-digits composite number following 72180856
and preceding 72180858 . In scientific notation, it is written as 7.2180857 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 61869300 positive integers (up to 72180857) that are relatively prime to 72180857.
72180857 has 4 divisors, whose sum is 82492416
The reverse of 72180857 is 75808127
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million one hundred eighty thousand eight hundred fifty-seven
Scientific notation
7.2180857 × 10^7
Engineering notation
7.2180857 × 10^6
Prime Factorization
7 × 10311551
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72180857
Product of the distinct prime numbers
The prime factorization of 72180857 is 7 × 10311551.
Since it has a total of 2 prime factors.
10 , 3 , 25 , 53 , 366 , 700 , 3005 , 9498 , 86610 , 83626 , 784025 , 274225 , 1647317 , 6243738 , 74657546 , 46859127 , 971568395 , 859807169 , 2376264469 , 6765331232
n×2
144361714
n×3
216542571
n×4
288723428
n×5
360904285
n÷2
36090428.5
n÷3
24060285.666667
n÷3
18045214.25
n÷5
14436171.4
n2
5210076117254449
n3
3.7606775917866E+23
n4
2.7144893147585E+31
n5
1.9593416505661E+39
2 √n
8495.9317911575
3 √n
416.36480458086
4 √n
92.173378972225
5 √n
37.29790228427
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
-72180856
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 72180857 can be divided by 4 positive divisors.
The sum of these divisors (counting 72180857) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010110010001111001
3
Ternary
12000211011112002
4
Quaternary
10103112101321
5
Quinary
121434241412
6
Senary
11055030345
8
Octal
423262171
10
Decimal
72180857
12
Duodecimal
2020b3b5
16
Hexadecimal
44d6479
20
Vigesimal
12b2c2h
36
Base36
16z33t
md5
8a07bb1491388631f6919443d8dddef1
sha1
f96d1dadb3207a8294a61ec832fc81a81d663dcc
sha256
a8ec3e7cd9bb9fbc1ead2e963c4909651591b13aa0cd99f6c85f7d625ca1381e
sha512
1e8d8f4c670a465b7e1f4a926529d68eaafa55548a4c121dc2df4ef24c4b8a9e638c152f837acc80b28384d76f28c55c4bae94bd292cfe129f7e483f3f39b3c0
ripemd-160
34322fce234ee4ca7a16ca4c296dad238ea07ce2
Diameter
144361714
Circumference
453525700.16203
Area
1.636793685461E+16
Volume
1.5752689459835E+24
Surface area
6.5471747418441E+16
Circumference
453525700.16203
Perimeter
288723428
Area
5210076117254449
Diagonal
102079146.91311
Surface area
31260456703526694
Volume
3.7606775917866E+23
Space diagonal
125020911.65786
Perimeter
216542571
Area
2.2560291365965E+15
Altitude
62510455.828932
Surface area
2.2560291365965E+15
Volume
4.4320010450143E+22
Height
34026382.304371