81793913 is an odd 8-digits prime number following 81793912
and preceding 81793914 . In scientific notation, it is written as 8.1793913 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 81793912 positive integers (up to 81793913) that are relatively prime to 81793913.
81793913 has 2 divisors, whose sum is 81793914
The reverse of 81793913 is 31939718
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 41 Digital Root 5
Name
eighty-one million seven hundred ninety-three thousand nine hundred thirteen
Scientific notation
8.1793913 × 10^7
Engineering notation
8.1793913 × 10^6
Prime Factorization
81793913
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81793913 Product of the distinct prime numbers
The prime factorization of 81793913 is 81793913.
Since it has a total of 1 prime factors.
10 , 8 , 33 , 71 , 615 , 428 , 9596 , 4133 , 50608 , 27708 , 430574 , 24738 , 8541333 , 2372185 , 50946490 , 75855708 , 121912584 , 585757597 , 7238913422 , 9825176734
n×2
163587826
n×3
245381739
n×4
327175652
n×5
408969565
n÷2
40896956.5
n÷3
27264637.666667
n÷3
20448478.25
n÷5
16358782.6
n2
6690244203851569
n3
5.4722125235859E+23
n4
4.475936750717E+31
n5
3.6610438118165E+39
2 √n9043.9987284387
3 √n434.08388342284
4 √n95.099940738355
5 √n38.242316991144
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81793914 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40896957 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9043.9987837239 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999755483 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81793913 can be divided by 2 positive divisors.
The sum of these divisors (counting 81793913) is 81793914, the average is 40896957.
Base
System
Value
2
Binary
100111000000001001101111001
3
Ternary
12200220120011012
4
Quaternary
10320001031321
5
Quinary
131414401123
6
Senary
12041043305
8
Octal
470011571
10
Decimal
81793913
12
Duodecimal
23486535
16
Hexadecimal
4e01379
20
Vigesimal
15b44fd
36
Base36
1cp4l5
md5
f649b507f88ba15c35ac18cf3df73aad
sha1
4afbb07c5439fe94585b9fd7dbd2a0d924fa5a5d
sha256
4d50286ad964319ea1de0db57c662bf615073f96cd5c1d3aab3c7d15f867a979
sha512
933cfe93e0c5ea40c0f859c66d5438ac4c8c84519d4b9e2042ab587c95693d029c6809fd05632585202caa7993555ff399db7764944f9e0eb18c272733794c1f
ripemd-160
c4e1cd3ede6a78ad53a3ed1e3a4779846d7fb7fc
Diameter
163587826
Circumference
513926312.37833
Area
2.1018022041542E+16
Volume
2.2921950217306E+24
Surface area
8.4072088166167E+16
Circumference
513926312.37833
Perimeter
327175652
Area
6690244203851569
Diagonal
115674061.08417
Surface area
40141465223109414
Volume
5.4722125235859E+23
Space diagonal
141671213.06587
Perimeter
245381739
Area
2.8969607190285E+15
Altitude
70835606.532934
Surface area
2.8969607190285E+15
Volume
6.4490643058692E+22
Height
38558020.361388