81994967 is an odd 8-digits prime number following 81994966
and preceding 81994968 . In scientific notation, it is written as 8.1994967 × 10^7.
The sum of its digits is 53. It has a total of 1 prime factors and 2 positive divisors.
There are 81994966 positive integers (up to 81994967) that are relatively prime to 81994967.
81994967 has 2 divisors, whose sum is 81994968
The reverse of 81994967 is 76949918
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
eighty-one million nine hundred ninety-four thousand nine hundred sixty-seven
Scientific notation
8.1994967 × 10^7
Engineering notation
8.1994967 × 10^6
Prime Factorization
81994967
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81994967
Product of the distinct prime numbers
The prime factorization of 81994967 is 81994967.
Since it has a total of 1 prime factors.
7 , 5 , 97 , 7 , 325 , 924 , 889 , 2280 , 39144 , 33000 , 734501 , 362189 , 1888288 , 1075127 , 74998695 , 28632396 , 34798621 , 456050083 , 2528724424 , 8904742168
n×2
163989934
n×3
245984901
n×4
327979868
n×5
409974835
n÷2
40997483.5
n÷3
27331655.666667
n÷3
20498741.75
n÷5
16398993.4
n2
6723174613331089
n3
5.5126648055532E+23
n4
4.520107688134E+31
n5
3.7062608072499E+39
2 √n
9055.1072329377
3 √n
434.43925986845
4 √n
95.158327186525
5 √n
38.261098883043
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81994968
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40997484
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9055.1072881551
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999756083
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81994967 can be divided by 2 positive divisors.
The sum of these divisors (counting 81994967) is 81994968, the average is 40997484.
Base
System
Value
2
Binary
100111000110010010011010111
3
Ternary
12201021202221122
4
Quaternary
10320302103113
5
Quinary
131442314332
6
Senary
12045234155
8
Octal
470622327
10
Decimal
81994967
12
Duodecimal
2356295b
16
Hexadecimal
4e324d7
20
Vigesimal
15c9787
36
Base36
1ctfpz
md5
16d77599335d7918774bf551eed2c2b9
sha1
3b6e7fc14fd0115477887b3fba0e0cb1b63882bd
sha256
4ba6b1d6493f05f9ffe3cb0447dbab1a3eb182dc100c620398b4806e4df4d2b9
sha512
49cd577fee689ecb66dce66cfb8279b782c8f39f18207fb3140ee36b1689a1f9764462547a36f9d0a748236006abae8d71586373e3e4431870e024cff4fe5006
ripemd-160
d7e6babe77dad798520dd5377378489fab6d822e
Diameter
163989934
Circumference
515189571.91708
Area
2.1121475974042E+16
Volume
2.3091396339772E+24
Surface area
8.4485903896169E+16
Circumference
515189571.91708
Perimeter
327979868
Area
6723174613331089
Diagonal
115958394.37773
Surface area
40339047679986534
Volume
5.5126648055532E+23
Space diagonal
142019448.80893
Perimeter
245984901
Area
2.9112200046117E+15
Altitude
71009724.404467
Surface area
2.9112200046117E+15
Volume
6.4967377773585E+22
Height
38652798.125911