18182821 is an odd 8-digits prime number following 18182820
and preceding 18182822 . In scientific notation, it is written as 1.8182821 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 18182820 positive integers (up to 18182821) that are relatively prime to 18182821.
18182821 has 2 divisors, whose sum is 18182822
The reverse of 18182821 is 12828181
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million one hundred eighty-two thousand eight hundred twenty-one
Scientific notation
1.8182821 × 10^7
Engineering notation
1.8182821 × 10^6
Prime Factorization
18182821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18182821
Product of the distinct prime numbers
The prime factorization of 18182821 is 18182821.
Since it has a total of 1 prime factors.
8 , 1 , 8 , 58 , 800 , 651 , 7018 , 5698 , 36531 , 52785 , 277018 , 802092 , 2161841 , 2304563 , 71292621 , 89341517 , 492395730 , 205260652 , 1573584103 , 4476935818
n×2
36365642
n×3
54548463
n×4
72731284
n×5
90914105
n÷2
9091410.5
n÷3
6060940.3333333
n÷3
4545705.25
n÷5
3636564.2
n2
330614979518041
n3
6.0115129924952E+21
n4
1.0930626468171E+29
n5
1.9874962448862E+36
2 √n
4264.1319163459
3 √n
262.95842374579
4 √n
65.300320951324
5 √n
28.309503501161
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18182822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9091411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4264.1320336031
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998900061
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18182821 can be divided by 2 positive divisors.
The sum of these divisors (counting 18182821) is 18182822, the average is 9091411.
Base
System
Value
2
Binary
1000101010111001010100101
3
Ternary
1021012210010211
4
Quaternary
1011113022211
5
Quinary
14123322241
6
Senary
1445415421
8
Octal
105271245
10
Decimal
18182821
12
Duodecimal
610a571
16
Hexadecimal
11572a5
20
Vigesimal
5dch11
36
Base36
atpyd
md5
2980f98779a4f6d8823beaabe3443681
sha1
cb50dd1171f83572e7eedfd00cd242b97e73e40a
sha256
b2d1b4355be286236d20105856cacc83364e7f9239ce8010760eadafee0e8511
sha512
68c404c54e571681ec1c0ab4e5de93e07396c07999b7f3aa44a43b8c5c022f0c1c6b3c0c12ef24e2e47d098125eb6772d5ef706a022a01f0e4ab9ebe4f25b908
ripemd-160
ab7b10802aada3fae49646c6e879144f84ddc1f7
Diameter
36365642
Circumference
114246033.75028
Area
1.0386575908206E+15
Volume
2.518096673891E+22
Surface area
4.1546303632825E+15
Circumference
114246033.75028
Perimeter
72731284
Area
330614979518041
Diagonal
25714392.060402
Surface area
1983689877108246
Volume
6.0115129924952E+21
Space diagonal
31493569.79693
Perimeter
54548463
Area
1.4316048556715E+14
Altitude
15746784.898465
Surface area
1.4316048556715E+14
Volume
7.0846360036407E+20
Height
8571464.0201341