81294310 is an even 8-digits composite number following 81294309
and preceding 81294311 . In scientific notation, it is written as 8.1294310 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 32517720 positive integers (up to 81294310) that are relatively prime to 81294310.
81294310 has 8 divisors, whose sum is 146329776
The reverse of 81294310 is 01349218
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million two hundred ninety-four thousand three hundred ten
Scientific notation
8.1294310 × 10^7
Engineering notation
8.1294310 × 10^6
Prime Factorization
2 × 5 × 8129431
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81294310
Product of the distinct prime numbers
The prime factorization of 81294310 is 2 × 5 × 8129431.
Since it has a total of 3 prime factors.
4 , 6 , 1 , 55 , 728 , 571 , 9799 , 475 , 88268 , 30372 , 703680 , 481310 , 4006325 , 888501 , 74701336 , 16506615 , 929438120 , 872216797 , 8578516168 , 5182812200
n×2
162588620
n×3
243882930
n×4
325177240
n×5
406471550
n÷2
40647155
n÷3
27098103.333333
n÷3
20323577.5
n÷5
16258862
n2
6608764838376100
n3
5.3725497748805E+23
n4
4.3675772688956E+31
n5
3.5505918044655E+39
2 √n
9016.3357302177
3 √n
433.19827283337
4 √n
94.954387630155
5 √n
38.195485075014
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
-81294309
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 81294310 can be divided by 8 positive divisors.
The sum of these divisors (counting 81294310) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000111001111100110
3
Ternary
12122222011211101
4
Quaternary
10312013033212
5
Quinary
131302404220
6
Senary
12022230314
8
Octal
466071746
10
Decimal
81294310
12
Duodecimal
2328539a
16
Hexadecimal
4d873e6
20
Vigesimal
1581ffa
36
Base36
1cef3a
md5
e33e9e7b1eb8d256a917cbb5ccc0e320
sha1
b35c4d042b21bc3a5715043209cc4e33b87ad3b9
sha256
81244cbbbdc04056757f387a37f361652945259e2a771a27c68b737bd3cec9e4
sha512
8e32bf47ce3bf262435028c025734eab85a72eee34d5ea51f93e184410800f7e9c70d5b4dccf1eca95d5477f83f3726fe68f6e17a6e9f78e7538a1aa23c4870b
ripemd-160
d3b9f5e0c32d0c0dcde9264f02ff6adba7e6501a
Diameter
162588620
Circumference
510787214.1493
Area
2.0762047065545E+16
Volume
2.2504483871747E+24
Surface area
8.304818826218E+16
Circumference
510787214.1493
Perimeter
325177240
Area
6608764838376100
Diagonal
114967515.74576
Surface area
39652589030256600
Volume
5.3725497748805E+23
Space diagonal
140805875.28625
Perimeter
243882930
Area
2.8616791188355E+15
Altitude
70402937.643127
Surface area
2.8616791188355E+15
Volume
6.3316106301337E+22
Height
38322505.248588