72507921 is an odd 8-digits composite number following 72507920
and preceding 72507922 . In scientific notation, it is written as 7.2507921 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 48302400 positive integers (up to 72507921) that are relatively prime to 72507921.
72507921 has 8 divisors, whose sum is 96749664
The reverse of 72507921 is 12970527
Previous prime number is 1451
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-two million five hundred seven thousand nine hundred twenty-one
Scientific notation
7.2507921 × 10^7
Engineering notation
7.2507921 × 10^6
Prime Factorization
3 × 1451 × 16657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72507921
Product of the distinct prime numbers
The prime factorization of 72507921 is 3 × 1451 × 16657.
Since it has a total of 3 prime factors.
10 , 8 , 90 , 9 , 35 , 124 , 5938 , 3414 , 51506 , 63892 , 21429 , 270509 , 9850349 , 1897549 , 92954498 , 60400088 , 478826365 , 499712355 , 1224510002 , 7713658979
n×2
145015842
n×3
217523763
n×4
290031684
n×5
362539605
n÷2
36253960.5
n÷3
24169307
n÷3
18126980.25
n÷5
14501584.2
n2
5257398607742241
n3
3.8120304291568E+23
n4
2.764024012069E+31
n5
2.004136347092E+39
2 √n
8515.1583073951
3 √n
416.99273086835
4 √n
92.277615418882
5 √n
37.331641842332
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
-72507920
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 72507921 can be divided by 8 positive divisors.
The sum of these divisors (counting 72507921) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010100100110001000010001
3
Ternary
12001102210011120
4
Quaternary
10110212020101
5
Quinary
122030223141
6
Senary
11110032453
8
Octal
424461021
10
Decimal
72507921
12
Duodecimal
20348729
16
Hexadecimal
4526211
20
Vigesimal
12d39g1
36
Base36
1763gx
md5
ad5c1564655a6199817ccc2528754af7
sha1
a30df0564b9d3745565f81de314b891f4181f46d
sha256
8db8b6703358632c49eed9c6406eb9203050055604345e486b55ef88b7bc337c
sha512
1a1d03f53e0c53051c48f2b3df4f04672d58b8bc930464dce558af51f94b798a28395e78ed05162136078a6c8c358b11fa3548fee4cc02305a5666b689b88a57
ripemd-160
a3389c8869a558439c6bf14a4b5d4b275762df00
Diameter
145015842
Circumference
455580703.88134
Area
1.6516604843076E+16
Volume
1.5967795722E+24
Surface area
6.6066419372305E+16
Circumference
455580703.88134
Perimeter
290031684
Area
5257398607742241
Diagonal
102541685.25768
Surface area
31544391646453446
Volume
3.8120304291568E+23
Space diagonal
125587403.12319
Perimeter
217523763
Area
2.2765203760629E+15
Altitude
62793701.561595
Surface area
2.2765203760629E+15
Volume
4.4925209442438E+22
Height
34180561.752559