72207921 is an odd 8-digits composite number following 72207920
and preceding 72207922 . In scientific notation, it is written as 7.2207921 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 48138612 positive integers (up to 72207921) that are relatively prime to 72207921.
72207921 has 4 divisors, whose sum is 96277232
The reverse of 72207921 is 12970227
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-two million two hundred seven thousand nine hundred twenty-one
Scientific notation
7.2207921 × 10^7
Engineering notation
7.2207921 × 10^6
Prime Factorization
3 × 24069307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72207921
Product of the distinct prime numbers
The prime factorization of 72207921 is 3 × 24069307.
Since it has a total of 2 prime factors.
5 , 9 , 44 , 72 , 282 , 917 , 5877 , 2540 , 36905 , 8034 , 927009 , 353717 , 6836763 , 5267854 , 53458256 , 5986983 , 774425307 , 707324419 , 7274173176 , 4733105018
n×2
144415842
n×3
216623763
n×4
288831684
n×5
361039605
n÷2
36103960.5
n÷3
24069307
n÷3
18051980.25
n÷5
14441584.2
n2
5213983855142241
n3
3.7649093430739E+23
n4
2.7185627641684E+31
n5
1.9630176530861E+39
2 √n
8497.5244042015
3 √n
416.41683633125
4 √n
92.182017791983
5 √n
37.300698812631
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72207920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72207921 can be divided by 4 positive divisors.
The sum of these divisors (counting 72207921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011011100111000110001
3
Ternary
12000212112122110
4
Quaternary
10103130320301
5
Quinary
121441123141
6
Senary
11055355533
8
Octal
423347061
10
Decimal
72207921
12
Duodecimal
20222ba9
16
Hexadecimal
44dce31
20
Vigesimal
12b5jg1
36
Base36
16znzl
md5
faf1aa08b39cb0b2923b6498a6e1068f
sha1
c1a0a054ee10f85a4b9887ba1826dfccc2fbe081
sha256
fe70e896950bdfda0fb87a02ad80d716222f650763ae5693b9913cbb9ce288e8
sha512
62822254361e0ef4aecb0c055de2ac6b33f698fa45cc778b2dd234ef55ef864f5dd1ab3aaf55984b403fc331a9cb99446b0245eb02f4081b06428965762c08fa
ripemd-160
8efe27691a14628a5bdb942150ea906bf99103e8
Diameter
144415842
Circumference
453695748.28918
Area
1.6380213375251E+16
Volume
1.5770415378177E+24
Surface area
6.5520853501003E+16
Circumference
453695748.28918
Perimeter
288831684
Area
5213983855142241
Diagonal
102117421.18897
Surface area
31283903130853446
Volume
3.7649093430739E+23
Space diagonal
125067787.88092
Perimeter
216623763
Area
2.2577212367376E+15
Altitude
62533893.94046
Surface area
2.2577212367376E+15
Volume
4.4369882117335E+22
Height
34039140.396322