72179991 is an odd 8-digits composite number following 72179990
and preceding 72179992 . In scientific notation, it is written as 7.2179991 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 43670016 positive integers (up to 72179991) that are relatively prime to 72179991.
72179991 has 32 divisors, whose sum is 91085120
The reverse of 72179991 is 19997127
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-two million one hundred seventy-nine thousand nine hundred ninety-one
Scientific notation
7.2179991 × 10^7
Engineering notation
7.2179991 × 10^6
Prime Factorization
27 × 9 × 13 × 73 × 313
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
72179991
Product of the distinct prime numbers
The prime factorization of 72179991 is 27 × 9 × 13 × 73 × 313.
Since it has a total of 5 prime factors.
5 , 1 , 20 , 67 , 37 , 113 , 2570 , 5076 , 39333 , 38686 , 725976 , 526928 , 8414010 , 9912333 , 18423467 , 67486023 , 326286623 , 911138333 , 5579124112 , 9036802693
n×2
144359982
n×3
216539973
n×4
288719964
n×5
360899955
n÷2
36089995.5
n÷3
24059997
n÷3
18044997.75
n÷5
14435998.2
n2
5209951100760081
n3
3.760542235633E+23
n4
2.7143590472311E+31
n5
1.9592241159991E+39
2 √n
8495.8808254353
3 √n
416.36313944241
4 √n
92.173102505207
5 √n
37.297812786474
1 , 9 , 13 , 27 , 73 , 117 , 243 , 313 , 351 , 657 , 949 , 1971 , 2817 , 3159 , 4069 , 8451 , 8541 , 17739 , 22849 , 25623 , 36621 , 76059 , 109863 , 205641 , 230607 , 297037 , 616923 , 988767 , 2673333 , 5552307 , 8019999 , 72179991
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72179990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72179991 can be divided by 32 positive divisors.
The sum of these divisors (counting 72179991) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010011010110000100010111
3
Ternary
12000211010100000
4
Quaternary
10103112010113
5
Quinary
121434224431
6
Senary
11055022343
8
Octal
423260427
10
Decimal
72179991
12
Duodecimal
2020a9b3
16
Hexadecimal
44d6117
20
Vigesimal
12b29jb
36
Base36
16z2fr
md5
a7a6c7b27fb72c6b0150375f5eeaf6f3
sha1
70a97d1e3381560a102b177349713f327fd340ef
sha256
5c1f0969ee079f6dbe48aa8abcf110529c4ad5319d5a1d9cc960c1731dd696be
sha512
6b278155f065e340b46f2c1bdb237f9a6d580db10575b94d77b10ecf3801b44a3948fdd4ff06f5ac6f8a345311bfca7f04e8bd3c06dbdf05ef6ac4ac13733633
ripemd-160
9bbd77a8dd8f8b2567b6d1efc4fa4a1f8eca4faf
Diameter
144359982
Circumference
453520258.92355
Area
1.636754410371E+16
Volume
1.5752122481305E+24
Surface area
6.547017641484E+16
Circumference
453520258.92355
Perimeter
288719964
Area
5209951100760081
Diagonal
102077922.20417
Surface area
31259706604560486
Volume
3.760542235633E+23
Space diagonal
125019411.70186
Perimeter
216539973
Area
2.2559750028665E+15
Altitude
62509705.850932
Surface area
2.2559750028665E+15
Volume
4.4318415262576E+22
Height
34025974.068056