72891605 is an odd 8-digits composite number following 72891604
and preceding 72891606 . In scientific notation, it is written as 7.2891605 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 58313280 positive integers (up to 72891605) that are relatively prime to 72891605.
72891605 has 4 divisors, whose sum is 87469932
The reverse of 72891605 is 50619827
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-two million eight hundred ninety-one thousand six hundred five
Scientific notation
7.2891605 × 10^7
Engineering notation
7.2891605 × 10^6
Prime Factorization
5 × 14578321
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72891605
Product of the distinct prime numbers
The prime factorization of 72891605 is 5 × 14578321.
Since it has a total of 2 prime factors.
9 , 7 , 20 , 20 , 945 , 774 , 3062 , 8831 , 79788 , 3402 , 142273 , 171324 , 8854542 , 1950611 , 8692239 , 47830033 , 557267180 , 498014094 , 2794529528 , 5670254232
n×2
145783210
n×3
218674815
n×4
291566420
n×5
364458025
n÷2
36445802.5
n÷3
24297201.666667
n÷3
18222901.25
n÷5
14578321
n2
5313186079476025
n3
3.8728666099666E+23
n4
2.8229946315138E+31
n5
2.0577260959742E+39
2 √n
8537.6580512457
3 √n
417.72695896173
4 √n
92.399448327605
5 √n
37.37106741538
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
-72891604
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 72891605 can be divided by 4 positive divisors.
The sum of these divisors (counting 72891605) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010110000011110011010101
3
Ternary
12002011021111002
4
Quaternary
10112003303111
5
Quinary
122130012410
6
Senary
11122153045
8
Octal
426036325
10
Decimal
72891605
12
Duodecimal
204b2785
16
Hexadecimal
4583cd5
20
Vigesimal
12fb905
36
Base36
17ebit
md5
e046ab7d6d1982c8c70a127e3a4760b5
sha1
39caea942f4bc7fdee752484204c0aec96bc58d6
sha256
303bfc07a02544da731fb43f792a4f2f723f22199c2bc030cf4332d603f33ee6
sha512
f9c65e739a9abd5a0d82d958fd2c305699fdfb9faddd3899a20bc8cbf61aff69052a9742bbe88974dd8da05601c796046c8cb705c9ee4b851493ea1cdb6b6f00
ripemd-160
ca850c14d621170b5b5884f412755bcdfc131cf9
Diameter
145783210
Circumference
457991461.55274
Area
1.6691866354437E+16
Volume
1.6222625720273E+24
Surface area
6.676746541775E+16
Circumference
457991461.55274
Perimeter
291566420
Area
5313186079476025
Diagonal
103084296.37414
Surface area
31879116476856150
Volume
3.8728666099666E+23
Space diagonal
126251963.30524
Perimeter
218674815
Area
2.30067705993E+15
Altitude
63125981.652621
Surface area
2.30067705993E+15
Volume
4.5642170708973E+22
Height
34361432.124714