72185561 is an odd 8-digits composite number following 72185560
and preceding 72185562 . In scientific notation, it is written as 7.2185561 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 60556608 positive integers (up to 72185561) that are relatively prime to 72185561.
72185561 has 8 divisors, whose sum is 84253440
The reverse of 72185561 is 16558127
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-two million one hundred eighty-five thousand five hundred sixty-one
Scientific notation
7.2185561 × 10^7
Engineering notation
7.2185561 × 10^6
Prime Factorization
7 × 47 × 219409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72185561
Product of the distinct prime numbers
The prime factorization of 72185561 is 7 × 47 × 219409.
Since it has a total of 3 prime factors.
8 , 3 , 75 , 65 , 945 , 202 , 9897 , 3855 , 38362 , 56781 , 585994 , 398923 , 2600323 , 8715692 , 64864398 , 80992826 , 805193726 , 240989181 , 2782679148 , 1858743849
n×2
144371122
n×3
216556683
n×4
288742244
n×5
360927805
n÷2
36092780.5
n÷3
24061853.666667
n÷3
18046390.25
n÷5
14437112.2
n2
5210755216884721
n3
3.761412885645E+23
n4
2.7151969930291E+31
n5
1.9599801816732E+39
2 √n
8496.208625028
3 √n
416.37384916497
4 √n
92.174880661859
5 √n
37.298388409723
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72185560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72185561 can be divided by 8 positive divisors.
The sum of these divisors (counting 72185561) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010111011011011001
3
Ternary
12000211101222022
4
Quaternary
10103113123121
5
Quinary
121434414221
6
Senary
11055104225
8
Octal
423273331
10
Decimal
72185561
12
Duodecimal
20212075
16
Hexadecimal
44d76d9
20
Vigesimal
12b33i1
36
Base36
16z6qh
md5
e1986096f82f12c1571c6da2481b5776
sha1
7447d29706f0b527f495b099b0fe75700a247bb1
sha256
2b53e63df55c78f0a8b509626f63d04cca03114fbd15d602f4bf52ea24ecdfab
sha512
576aff26506c64aa6774302a41f92a92a3fa251eb9f5ea0c3f74f13a6310deb9133df7ad85365d0222f0c49ab2ba582b4b40661383cc04e871a846012031ce84
ripemd-160
b833ca067d9ae16646e33537c56cbe31e69abb54
Diameter
144371122
Circumference
453555256.26572
Area
1.637007030902E+16
Volume
1.5755769451547E+24
Surface area
6.5480281236079E+16
Circumference
453555256.26572
Perimeter
288742244
Area
5210755216884721
Diagonal
102085799.37371
Surface area
31264531301308326
Volume
3.761412885645E+23
Space diagonal
125029059.22486
Perimeter
216556683
Area
2.2563231953622E+15
Altitude
62514529.612431
Surface area
2.2563231953622E+15
Volume
4.4328675971367E+22
Height
34028599.791237