82661221 is an odd 8-digits composite number following 82661220
and preceding 82661222 . In scientific notation, it is written as 8.2661221 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 79994700 positive integers (up to 82661221) that are relatively prime to 82661221.
82661221 has 4 divisors, whose sum is 85327744
The reverse of 82661221 is 12216628
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-two million six hundred sixty-one thousand two hundred twenty-one
Scientific notation
8.2661221 × 10^7
Engineering notation
8.2661221 × 10^6
Prime Factorization
31 × 2666491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
82661221
Product of the distinct prime numbers
The prime factorization of 82661221 is 31 × 2666491.
Since it has a total of 2 prime factors.
7 , 7 , 2 , 99 , 172 , 466 , 6651 , 7741 , 93438 , 23498 , 543026 , 568749 , 7609340 , 816020 , 72501959 , 19503892 , 236124255 , 865702254 , 2153988395 , 9565794320
n×2
165322442
n×3
247983663
n×4
330644884
n×5
413306105
n÷2
41330610.5
n÷3
27553740.333333
n÷3
20665305.25
n÷5
16532244.2
n2
6832877457210841
n3
5.6481399355642E+23
n4
4.668821434526E+31
n5
3.8593048040889E+39
2 √n
9091.8216546521
3 √n
435.61277272194
4 √n
95.351044329111
5 √n
38.323076244441
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-82661220
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 82661221 can be divided by 4 positive divisors.
The sum of these divisors (counting 82661221) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011010100111101100101
3
Ternary
12202112121212201
4
Quaternary
10323110331211
5
Quinary
132130124341
6
Senary
12111414501
8
Octal
473247545
10
Decimal
82661221
12
Duodecimal
23824431
16
Hexadecimal
4ed4f65
20
Vigesimal
15gcd11
36
Base36
1d7pt1
md5
f25706666c7013bf662fa7872ea9bcea
sha1
4a8eb913e011478b1e213a168999dcf84e00cad0
sha256
b2ed9810bef250eac6c6935a07ae6525041d43038df816ee753d4a0fe78d6ac2
sha512
f90b585a2dda96d9735d98ee3d2f990d631b689e4bc65873ebbe2d4004650955e76cddccfec0af9a2271e05dde2f68e64129bae0dd2c9c13c2e691390b7ea59b
ripemd-160
a2ffd57865dcafadf6dec6e6c2c13cdacfa3d2fe
Diameter
165322442
Circumference
519375769.26072
Area
2.1466117622453E+16
Volume
2.3658873237354E+24
Surface area
8.5864470489812E+16
Circumference
519375769.26072
Perimeter
330644884
Area
6832877457210841
Diagonal
116900619.82052
Surface area
40997264743265046
Volume
5.6481399355642E+23
Space diagonal
143173434.58768
Perimeter
247983663
Area
2.9587227294453E+15
Altitude
71586717.29384
Surface area
2.9587227294453E+15
Volume
6.6563967492134E+22
Height
38966873.273507