72086721 is an odd 8-digits composite number following 72086720
and preceding 72086722 . In scientific notation, it is written as 7.2086721 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 39771648 positive integers (up to 72086721) that are relatively prime to 72086721.
72086721 has 16 divisors, whose sum is 113635200
The reverse of 72086721 is 12768027
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-two million eighty-six thousand seven hundred twenty-one
Scientific notation
7.2086721 × 10^7
Engineering notation
7.2086721 × 10^6
Prime Factorization
3 × 7 × 29 × 118369
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72086721
Product of the distinct prime numbers
The prime factorization of 72086721 is 3 × 7 × 29 × 118369.
Since it has a total of 4 prime factors.
9 , 10 , 42 , 49 , 379 , 973 , 8243 , 4248 , 12453 , 54444 , 172219 , 12156 , 7766194 , 2280906 , 64663321 , 87892728 , 566923176 , 805855413 , 1452840152 , 3382341417
n×2
144173442
n×3
216260163
n×4
288346884
n×5
360433605
n÷2
36043360.5
n÷3
24028907
n÷3
18021680.25
n÷5
14417344.2
n2
5196495344531841
n3
3.7459831007907E+23
n4
2.7003563865741E+31
n5
1.9465983743954E+39
2 √n
8490.3899203747
3 √n
416.18372255
4 √n
92.143311859161
5 √n
37.288168655373
1 , 3 , 7 , 21 , 29 , 87 , 203 , 609 , 118369 , 355107 , 828583 , 2485749 , 3432701 , 10298103 , 24028907 , 72086721
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72086720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72086721 can be divided by 16 positive divisors.
The sum of these divisors (counting 72086721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010010111111010011000001
3
Ternary
12000122101101120
4
Quaternary
10102333103001
5
Quinary
121423233341
6
Senary
11053022453
8
Octal
422772301
10
Decimal
72086721
12
Duodecimal
20184a29
16
Hexadecimal
44bf4c1
20
Vigesimal
12aagg1
36
Base36
16x2gx
md5
204b0fff29334e468d5581909ede9ce5
sha1
6721846d21beef67f5bd2569cb58fe3a65bc3302
sha256
4c9fb7f4e8d588b4e87935df76fdf05a099ee1f15ca8f179c93e1b3f7c0eea49
sha512
d8bccc04864aabb2f2a712b1fbd1ab3243e0b57d23117d2c40182f5a643b9d6de2fc74db138f7f5566281a7b1a797c24c5351d244cb653b7ccc7ba4b4de26b14
ripemd-160
d7ebe89bee7246b91bb22d22bb1b66ba05226aa4
Diameter
144173442
Circumference
452934226.22995
Area
1.6325271598795E+16
Volume
1.5691137319887E+24
Surface area
6.5301086395179E+16
Circumference
452934226.22995
Perimeter
288346884
Area
5196495344531841
Diagonal
101946018.50521
Surface area
31178972067191046
Volume
3.7459831007907E+23
Space diagonal
124857863.32304
Perimeter
216260163
Area
2.2501484895061E+15
Altitude
62428931.661521
Surface area
2.2501484895061E+15
Volume
4.4146834212988E+22
Height
33982006.168402