72667721 is an odd 8-digits composite number following 72667720
and preceding 72667722 . In scientific notation, it is written as 7.2667721 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 60837840 positive integers (up to 72667721) that are relatively prime to 72667721.
72667721 has 8 divisors, whose sum is 84980544
The reverse of 72667721 is 12776627
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million six hundred sixty-seven thousand seven hundred twenty-one
Scientific notation
7.2667721 × 10^7
Engineering notation
7.2667721 × 10^6
Prime Factorization
7 × 43 × 241421
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72667721
Product of the distinct prime numbers
The prime factorization of 72667721 is 7 × 43 × 241421.
Since it has a total of 3 prime factors.
2 , 10 , 21 , 22 , 294 , 409 , 3343 , 6659 , 75192 , 85742 , 815773 , 574604 , 3434457 , 7968996 , 24689516 , 93237590 , 323714486 , 904135622 , 2804775117 , 6565218073
n×2
145335442
n×3
218003163
n×4
290670884
n×5
363338605
n÷2
36333860.5
n÷3
24222573.666667
n÷3
18166930.25
n÷5
14533544.2
n2
5280597675333841
n3
3.8372899858441E+23
n4
2.7884711808741E+31
n5
2.026318457883E+39
2 √n
8524.5364096823
3 √n
417.29884246173
4 √n
92.328416046645
5 √n
37.348082375183
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
-72667720
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 72667721 can be divided by 8 positive divisors.
The sum of these divisors (counting 72667721) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010101001101001001001001
3
Ternary
12001201220101002
4
Quaternary
10111031021021
5
Quinary
122100331341
6
Senary
11113304345
8
Octal
425151111
10
Decimal
72667721
12
Duodecimal
204050b5
16
Hexadecimal
454d249
20
Vigesimal
12e3961
36
Base36
179irt
md5
b2bfcd66008e3aee6bb4bf2bc3a6c8e9
sha1
e3eb2acf2c424a1d83b403f85f94f344726bcce7
sha256
91d27ba3770e9fb3d958ea2ba7a0928babda58777dc3d83c4649f6d929442057
sha512
e6182836a346c4164281abfdf6534fa9a65a34bbb3677d3b05f213dfb1cde441f4368e1b0a76c7b2b99619916b4a1ef4981b8b692fa34d25d69cbd7ae418734e
ripemd-160
f58fff3bc4c52a458bb2b766d2cb035c98985ff8
Diameter
145335442
Circumference
456584756.89343
Area
1.6589486863392E+16
Volume
1.6073602705629E+24
Surface area
6.6357947453569E+16
Circumference
456584756.89343
Perimeter
290670884
Area
5280597675333841
Diagonal
102767676.58494
Surface area
31683586052003046
Volume
3.8372899858441E+23
Space diagonal
125864184.84224
Perimeter
218003163
Area
2.2865658670021E+15
Altitude
62932092.42112
Surface area
2.2865658670021E+15
Volume
4.5222896172826E+22
Height
34255892.194981