72185813 is an odd 8-digits composite number following 72185812
and preceding 72185814 . In scientific notation, it is written as 7.2185813 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 61873548 positive integers (up to 72185813) that are relatively prime to 72185813.
72185813 has 4 divisors, whose sum is 82498080
The reverse of 72185813 is 31858127
Previous prime number is 7
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 eight hundred thirteen
Scientific notation
7.2185813 × 10^7
Engineering notation
7.2185813 × 10^6
Prime Factorization
7 × 10312259
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72185813
Product of the distinct prime numbers
The prime factorization of 72185813 is 7 × 10312259.
Since it has a total of 2 prime factors.
8 , 9 , 78 , 38 , 688 , 411 , 8950 , 886 , 74156 , 64774 , 643038 , 995542 , 7537899 , 1181620 , 37592725 , 49731094 , 145081597 , 582477339 , 6432882956 , 6789144124
n×2
144371626
n×3
216557439
n×4
288743252
n×5
360929065
n÷2
36092906.5
n÷3
24061937.666667
n÷3
18046453.25
n÷5
14437162.6
n2
5210791598470969
n3
3.761452279092E+23
n4
2.7152349082696E+31
n5
1.9600143933942E+39
2 √n
8496.2234551594
3 √n
416.37433368517
4 √n
92.174961107447
5 √n
37.298414451443
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
-72185812
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 72185813 can be divided by 4 positive divisors.
The sum of these divisors (counting 72185813) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010111011111010101
3
Ternary
12000211102022122
4
Quaternary
10103113133111
5
Quinary
121434421223
6
Senary
11055105325
8
Octal
423273725
10
Decimal
72185813
12
Duodecimal
20212245
16
Hexadecimal
44d77d5
20
Vigesimal
12b34ad
36
Base36
16z6xh
md5
5f501b58136a6ead32d1d9491052f98c
sha1
7fea21583e298051025880f03be974dcfadae63b
sha256
c39b6366ffb2d04377d23ca0efaaa42524b9f32fd82440d38c643c9278b29f25
sha512
9c22be323bef3490b1a661dd9f38e2a5246b8e28e33f40edc6b68df3c8382d7bfcd31165723973eb5aec3728ee4f875cab39d90a99725532678a73b0f6b664bf
ripemd-160
3ed00f2dbb14839a26e60d2ec3a24ecb69f44b08
Diameter
144371626
Circumference
453556839.62841
Area
1.6370184605144E+16
Volume
1.5755934462432E+24
Surface area
6.5480738420575E+16
Circumference
453556839.62841
Perimeter
288743252
Area
5210791598470969
Diagonal
102086155.75553
Surface area
31264749590825814
Volume
3.761452279092E+23
Space diagonal
125029495.70167
Perimeter
216557439
Area
2.2563389490512E+15
Altitude
62514747.850833
Surface area
2.2563389490512E+15
Volume
4.4329140227592E+22
Height
34028718.585176