72804981 is an odd 8-digits composite number following 72804980
and preceding 72804982 . In scientific notation, it is written as 7.2804981 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 48536652 positive integers (up to 72804981) that are relatively prime to 72804981.
72804981 has 4 divisors, whose sum is 97073312
The reverse of 72804981 is 18940827
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-two million eight hundred four thousand nine hundred eighty-one
Scientific notation
7.2804981 × 10^7
Engineering notation
7.2804981 × 10^6
Prime Factorization
3 × 24268327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72804981
Product of the distinct prime numbers
The prime factorization of 72804981 is 3 × 24268327.
Since it has a total of 2 prime factors.
10 , 9 , 15 , 99 , 457 , 37 , 3399 , 4949 , 60877 , 24785 , 99294 , 181304 , 8532968 , 3377842 , 71638363 , 77401139 , 583034296 , 875566316 , 9502954737 , 6057611782
n×2
145609962
n×3
218414943
n×4
291219924
n×5
364024905
n÷2
36402490.5
n÷3
24268327
n÷3
18201245.25
n÷5
14560996.2
n2
5300565258410361
n3
3.8590755292783E+23
n4
2.8095992058667E+31
n5
2.0455281680074E+39
2 √n
8532.5834891901
3 √n
417.5614185283
4 √n
92.371984330695
5 √n
37.362180874096
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
-72804980
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 72804981 can be divided by 4 positive divisors.
The sum of these divisors (counting 72804981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010101101110101001110101
3
Ternary
12001222212122210
4
Quaternary
10111232221311
5
Quinary
122114224411
6
Senary
11120244033
8
Octal
425565165
10
Decimal
72804981
12
Duodecimal
20470619
16
Hexadecimal
456ea75
20
Vigesimal
12f0c91
36
Base36
17cgol
md5
b42779e9470669bcab4f913ebc540f8f
sha1
995b7674b61844024e8b6a76a6d4a43c879f8c90
sha256
a9254fd1a92d9c2fca329368874b5958b472b82de56f823074c2e54e63d04976
sha512
0981e146e179893eb23d5684812fd7225f4d443e29f09cfaed1f00e50857d13c223a81554e7a6da3b61eef1af4033eb2462f3b862654f9c5a287de9d01ab97c9
ripemd-160
3873eeb9d29ece0fd21b205b366e30fff4d4e08f
Diameter
145609962
Circumference
457447186.90869
Area
1.6652216875695E+16
Volume
1.6164857776572E+24
Surface area
6.6608867502781E+16
Circumference
457447186.90869
Perimeter
291219924
Area
5300565258410361
Diagonal
102961791.53852
Surface area
31803391550462166
Volume
3.8590755292783E+23
Space diagonal
126101926.13609
Perimeter
218414943
Area
2.2952120841003E+15
Altitude
63050963.068043
Surface area
2.2952120841003E+15
Volume
4.5479641264395E+22
Height
34320597.179505