81291714 is an even 8-digits composite number following 81291713
and preceding 81291715 . In scientific notation, it is written as 8.1291714 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 23226192 positive integers (up to 81291714) that are relatively prime to 81291714.
81291714 has 8 divisors, whose sum is 127744188
The reverse of 81291714 is 41719218
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million two hundred ninety-one thousand seven hundred fourteen
Scientific notation
8.1291714 × 10^7
Engineering notation
8.1291714 × 10^6
Prime Factorization
2 × 21 × 1935517
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81291714
Product of the distinct prime numbers
The prime factorization of 81291714 is 2 × 21 × 1935517.
Since it has a total of 3 prime factors.
3 , 9 , 4 , 47 , 400 , 355 , 1059 , 1619 , 63651 , 54075 , 506193 , 286042 , 1220295 , 747735 , 79941974 , 73009460 , 556539386 , 763107512 , 4841854259 , 1751432168
n×2
162583428
n×3
243875142
n×4
325166856
n×5
406458570
n÷2
40645857
n÷3
27097238
n÷3
20322928.5
n÷5
16258342.8
n2
6608342765057796
n3
5.3720351007105E+23
n4
4.3670194100492E+31
n5
3.5500249291417E+39
2 √n
9016.1917681469
3 √n
433.19366162631
4 √n
94.953629568052
5 √n
38.195241129907
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81291713
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81291714 can be divided by 8 positive divisors.
The sum of these divisors (counting 81291714) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000110100111000010
3
Ternary
12122222001021020
4
Quaternary
10312012213002
5
Quinary
131302313324
6
Senary
12022210310
8
Octal
466064702
10
Decimal
81291714
12
Duodecimal
23283996
16
Hexadecimal
4d869c2
20
Vigesimal
158195e
36
Base36
1ced36
md5
c1ffa5408622587c3124702a9f8dfa08
sha1
5543ee6c8bf5d325e01c2460bcf063d8b85dfdc7
sha256
50fea2598d921085e6c22bc1dcc2d7611cb5586eec57489bed89ae3665facc1a
sha512
f75d05e0e77a9d241343fa480456aa2c7b5e9dd8a97dd0955cdebb88bd960ce230ec5bfac80df5f70cfd282197a11d9f71b0f6649eb7a69db281a17c3ca1ba89
ripemd-160
d8e3b8ff29798d4c67c99b429b8ce280ec24a84c
Diameter
162583428
Circumference
510770903.00025
Area
2.0760721083109E+16
Volume
2.2502328009625E+24
Surface area
8.3042884332435E+16
Circumference
510770903.00025
Perimeter
325166856
Area
6608342765057796
Diagonal
114963844.44735
Surface area
39650056590346776
Volume
5.3720351007105E+23
Space diagonal
140801378.88236
Perimeter
243875142
Area
2.8614963557276E+15
Altitude
70400689.441179
Surface area
2.8614963557276E+15
Volume
6.3310040808076E+22
Height
38321281.482452