81572009 is an odd 8-digits prime number following 81572008
and preceding 81572010 . In scientific notation, it is written as 8.1572009 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 81572008 positive integers (up to 81572009) that are relatively prime to 81572009.
81572009 has 2 divisors, whose sum is 81572010
The reverse of 81572009 is 90027518
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million five hundred seventy-two thousand nine
Scientific notation
8.1572009 × 10^7
Engineering notation
8.1572009 × 10^6
Prime Factorization
81572009
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81572009
Product of the distinct prime numbers
The prime factorization of 81572009 is 81572009.
Since it has a total of 1 prime factors.
2 , 6 , 57 , 36 , 592 , 185 , 6355 , 6737 , 88274 , 4440 , 229199 , 86488 , 3479835 , 4349055 , 22017489 , 50912714 , 5281069 , 92391669 , 9222351547 , 7020863281
n×2
163144018
n×3
244716027
n×4
326288036
n×5
407860045
n÷2
40786004.5
n÷3
27190669.666667
n÷3
20393002.25
n÷5
16314401.8
n2
6653992652296081
n3
5.4277954851903E+23
n4
4.427561821681E+31
n5
3.6116511276622E+39
2 √n
9031.7223717295
3 √n
433.69097647419
4 √n
95.035374317827
5 √n
38.221544425466
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81572010
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40786005
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9031.72242709
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999754818
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81572009 can be divided by 2 positive divisors.
The sum of these divisors (counting 81572009) is 81572010, the average is 40786005.
Base
System
Value
2
Binary
100110111001011000010101001
3
Ternary
12200111021202112
4
Quaternary
10313023002221
5
Quinary
131340301014
6
Senary
12032212105
8
Octal
467130251
10
Decimal
81572009
12
Duodecimal
2339a035
16
Hexadecimal
4dcb0a9
20
Vigesimal
159ga09
36
Base36
1ckdd5
md5
5eb16046f956d302952246bbc9dec9ff
sha1
d6d529fe6bf685298705667d48340786457c75b1
sha256
98773d32bcc1801a876cf4b05d8de9b46587b3ea1c1ae99f7e9a3846eed364b6
sha512
23332452bac63a6823fa3c0533d901578e3dda89d15adbf519aa72cd975ff0ac2f86a1a06b64685b787c336d5985ef8f177c8c82acd257e77e4997f7c9dce525
ripemd-160
4ff2ccc4724f72ce1487d586e7c4a4f91b3c9963
Diameter
163144018
Circumference
512532048.42592
Area
2.0904134433494E+16
Volume
2.2735896561949E+24
Surface area
8.3616537733975E+16
Circumference
512532048.42592
Perimeter
326288036
Area
6653992652296081
Diagonal
115360241.43782
Surface area
39923955913776486
Volume
5.4277954851903E+23
Space diagonal
141286864.06347
Perimeter
244716027
Area
2.8812633367417E+15
Altitude
70643432.031733
Surface area
2.8812633367417E+15
Volume
6.3967183241196E+22
Height
38453413.812607