81330797 is an odd 8-digits prime number following 81330796
and preceding 81330798 . In scientific notation, it is written as 8.1330797 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 81330796 positive integers (up to 81330797) that are relatively prime to 81330797.
81330797 has 2 divisors, whose sum is 81330798
The reverse of 81330797 is 79703318
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million three hundred thirty thousand seven hundred ninety-seven
Scientific notation
8.1330797 × 10^7
Engineering notation
8.1330797 × 10^6
Prime Factorization
81330797
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81330797
Product of the distinct prime numbers
The prime factorization of 81330797 is 81330797.
Since it has a total of 1 prime factors.
10 , 5 , 99 , 85 , 179 , 147 , 3602 , 2798 , 70394 , 53265 , 882036 , 906889 , 4905840 , 9257863 , 18681297 , 95839651 , 837910033 , 56377394 , 2006303249 , 1257383793
n×2
162661594
n×3
243992391
n×4
325323188
n×5
406653985
n÷2
40665398.5
n÷3
27110265.666667
n÷3
20332699.25
n÷5
16266159.4
n2
6614698540655209
n3
5.3797870422623E+23
n4
4.3754236783746E+31
n5
3.5585669497488E+39
2 √n
9018.3588861832
3 √n
433.26307335565
4 √n
94.965040336869
5 √n
38.198913084996
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81330798
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40665399
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9018.3589416257
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999754091
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330797 can be divided by 2 positive divisors.
The sum of these divisors (counting 81330797) is 81330798, the average is 40665399.
Base
System
Value
2
Binary
100110110010000001001101101
3
Ternary
12200001000212202
4
Quaternary
10312100021231
5
Quinary
131310041142
6
Senary
12023111245
8
Octal
466201155
10
Decimal
81330797
12
Duodecimal
232a2525
16
Hexadecimal
4d9026d
20
Vigesimal
15866jh
36
Base36
1cf78t
md5
7f19ea54a986db3b165868cb306346aa
sha1
f6ff758c37451b0972a0e1a26ac8bd0245b1f7b8
sha256
12289427ceefc59b5f01933b906776ff9e2bd956f6d0b2859eb753bcab7fc546
sha512
3a3694cfaf8e85118b5ad0e0a2ad5a1832748695540781b4c7967f01dc12f5a31cdd4c8680619fdc907759870893a10bc1b33abe193597a626b25b444942a6b8
ripemd-160
ff8f86d6384177449c12a72dca2b0ffc53146bac
Diameter
162661594
Circumference
511016468.73161
Area
2.0780688341034E+16
Volume
2.2534799266465E+24
Surface area
8.3122753364134E+16
Circumference
511016468.73161
Perimeter
325323188
Area
6614698540655209
Diagonal
115019116.15601
Surface area
39688191243931254
Volume
5.3797870422623E+23
Space diagonal
140869072.62407
Perimeter
243992391
Area
2.8642484872916E+15
Altitude
70434536.312035
Surface area
2.8642484872916E+15
Volume
6.3401398315386E+22
Height
38339705.385338