81222 is an even 5-digits composite number following 81221
and preceding 81223 . In scientific notation, it is written as 8.1222 × 10^4.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 27072 positive integers (up to 81222) that are relatively prime to 81222.
81222 has 8 divisors, whose sum is 162456
The reverse of 81222 is 22218
Previous prime number is 3
Is Prime? no
Number parity even
Number length 5
Sum of Digits 15
Digital Root 6
Name
eighty-one thousand two hundred twenty-two
Scientific notation
8.1222 × 10^4
Engineering notation
8.1222 × 10^3
Prime Factorization
2 × 3 × 13537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81222
Product of the distinct prime numbers
The prime factorization of 81222 is 2 × 3 × 13537.
Since it has a total of 3 prime factors.
6 , 3 , 71 , 22 , 877 , 848 , 9379 , 2714 , 36213 , 39497 , 331945 , 964793 , 5997278 , 154942 , 75672403 , 34386009 , 384903315 , 622108227 , 9812708265 , 8754294377
n×2
162444
n×3
243666
n×4
324888
n×5
406110
n÷2
40611
n÷3
27074
n÷3
20305.5
n÷5
16244.4
n2
6597013284
n3
535822612953048
n4
4.3520584269272E+19
n5
3.5348288955188E+24
2 √n
284.99473679351
3 √n
43.306979373371
4 √n
16.881787132691
5 √n
9.5925646723139
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
-81221
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 81222 can be divided by 8 positive divisors.
The sum of these divisors (counting 81222) is 1, the average is 0.125.
Base
System
Value
2
Binary
10011110101000110
3
Ternary
11010102020
4
Quaternary
103311012
5
Quinary
10044342
6
Senary
1424010
8
Octal
236506
10
Decimal
81222
12
Duodecimal
3b006
16
Hexadecimal
13d46
20
Vigesimal
a312
36
Base36
1qo6
md5
2ec65be41c22f912746627f88ffadf5b
sha1
45194ca1baafcef7db41049be3ad146524bd43a2
sha256
fc7f430cbcff9e134bc5c1af819a0f48175c5309b758613ab3ec2659d8107872
sha512
8150b24182ef1d132e419c0eb56f38b274a3e7f31948cc5e949fe4fae130ba05c158bad0515c330e3957f5e829199a1c0c265661e9d9b768a690576e10c613ff
ripemd-160
5d84896b838272973dec4b86f1fd7c9f8d8906ed
Diameter
162444
Circumference
510332.87701974
Area
20725128468.649
Volume
2.2444485126408E+15
Surface area
82900513874.595
Circumference
510332.87701974
Perimeter
324888
Area
6597013284
Diagonal
114865.25396307
Surface area
39582079704
Volume
535822612953048
Space diagonal
140680.63069236
Perimeter
243666
Area
2856590546.5237
Altitude
70340.31534618
Surface area
2856590546.5237
Volume
63147300522033
Height
38288.417987689