72617991 is an odd 8-digits composite number following 72617990
and preceding 72617992 . In scientific notation, it is written as 7.2617991 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 47748672 positive integers (up to 72617991) that are relatively prime to 72617991.
72617991 has 8 divisors, whose sum is 98150640
The reverse of 72617991 is 19971627
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-two million six hundred seventeen thousand nine hundred ninety-one
Scientific notation
7.2617991 × 10^7
Engineering notation
7.2617991 × 10^6
Prime Factorization
3 × 73 × 331589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72617991
Product of the distinct prime numbers
The prime factorization of 72617991 is 3 × 73 × 331589.
Since it has a total of 3 prime factors.
8 , 8 , 82 , 33 , 567 , 205 , 8242 , 6121 , 49412 , 85523 , 636562 , 168937 , 1759646 , 1826877 , 44766618 , 209861 , 445856639 , 541154998 , 7256900890 , 2854987091
n×2
145235982
n×3
217853973
n×4
290471964
n×5
363089955
n÷2
36308995.5
n÷3
24205997
n÷3
18154497.75
n÷5
14523598.2
n2
5273372616876081
n3
3.8294172523195E+23
n4
2.7808458756418E+31
n5
2.0193944076975E+39
2 √n
8521.6190363099
3 √n
417.20362821403
4 √n
92.312615802554
5 √n
37.342969159188
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
-72617990
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 72617991 can be divided by 8 positive divisors.
The sum of these divisors (counting 72617991) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010101000001000000000111
3
Ternary
12001122101011020
4
Quaternary
10111001000013
5
Quinary
122042233431
6
Senary
11112242223
8
Octal
425010007
10
Decimal
72617991
12
Duodecimal
203a0373
16
Hexadecimal
4541007
20
Vigesimal
12dh4jb
36
Base36
178gef
md5
f82d76d764cc3faeace385b1b16389fe
sha1
e5716a004d6ea043808e3f750f789acb3059f9b9
sha256
f1b724e67640607fca33f4408bb2ee7f0d842ccb5bfdfdbb31927f884a81037d
sha512
861fa3520f6e8f4aa7ea5afa43c8ad620080845ad76685393b0b9e6fef53a3291b0b688b4702ca6db50c5ac366263aa43d13149811f11527c8dbbc302c5bb740
ripemd-160
776f10f954213f20aedbceafd345a4a5f52560b0
Diameter
145235982
Circumference
456272294.0881
Area
1.6566788672819E+16
Volume
1.6040625476556E+24
Surface area
6.6267154691278E+16
Circumference
456272294.0881
Perimeter
290471964
Area
5273372616876081
Diagonal
102697347.74449
Surface area
31640235701256486
Volume
3.8294172523195E+23
Space diagonal
125778049.95558
Perimeter
217853973
Area
2.283437324918E+15
Altitude
62889024.97779
Surface area
2.283437324918E+15
Volume
4.5130115118465E+22
Height
34232449.248162