72181057 is an odd 8-digits composite number following 72181056
and preceding 72181058 . In scientific notation, it is written as 7.2181057 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 63121680 positive integers (up to 72181057) that are relatively prime to 72181057.
72181057 has 8 divisors, whose sum is 81824960
The reverse of 72181057 is 75018127
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
seventy-two million one hundred eighty-one thousand fifty-seven
Scientific notation
7.2181057 × 10^7
Engineering notation
7.2181057 × 10^6
Prime Factorization
13 × 19 × 292231
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181057
Product of the distinct prime numbers
The prime factorization of 72181057 is 13 × 19 × 292231.
Since it has a total of 3 prime factors.
1 , 4 , 83 , 35 , 366 , 803 , 6363 , 6918 , 75296 , 97613 , 923413 , 962194 , 1219970 , 8202141 , 86626194 , 29055835 , 382142153 , 171270732 , 9809808388 , 3316469835
n×2
144362114
n×3
216543171
n×4
288724228
n×5
360905285
n÷2
36090528.5
n÷3
24060352.333333
n÷3
18045264.25
n÷5
14436211.4
n2
5210104989637249
n3
3.7607088523299E+23
n4
2.7145194003043E+31
n5
1.9593687956097E+39
2 √n
8495.9435614886
3 √n
416.36518913751
4 √n
92.173442821068
5 √n
37.297922953386
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
-72181056
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 72181057 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181057) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110010101000001
3
Ternary
12000211011210111
4
Quaternary
10103112111001
5
Quinary
121434243212
6
Senary
11055031321
8
Octal
423262501
10
Decimal
72181057
12
Duodecimal
2020b541
16
Hexadecimal
44d6541
20
Vigesimal
12b2cch
36
Base36
16z39d
md5
d7da80c229afeb403ec0d6a804cfabcd
sha1
3632f3be9ff9825a5595e0b175644a60f29741a7
sha256
31d150b536c1896dd2ff4af2f36367968e21f54bf3cfd53ddd2b288c6b0af0b6
sha512
9e1f0a72516beae9d7eeb29ca2a1287d8be5d1d30e1cf0d7d04c15e3e3ec500f004d8746a57f90a0c6e9bc5188503feb92c6b8f2803f8903077065ea747ee019
ripemd-160
9aa64770ac70db9bdfe731d286e56bcc484aa8e7
Diameter
144362114
Circumference
453526956.79909
Area
1.6368027559876E+16
Volume
1.5752820403693E+24
Surface area
6.5472110239504E+16
Circumference
453526956.79909
Perimeter
288724228
Area
5210104989637249
Diagonal
102079429.75583
Surface area
31260629937823494
Volume
3.7607088523299E+23
Space diagonal
125021258.06803
Perimeter
216543171
Area
2.256041638705E+15
Altitude
62510629.034013
Surface area
2.256041638705E+15
Volume
4.4320378859179E+22
Height
34026476.585275