18805213 is an odd 8-digits composite number following 18805212
and preceding 18805214 . In scientific notation, it is written as 1.8805213 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14757120 positive integers (up to 18805213) that are relatively prime to 18805213.
18805213 has 16 divisors, whose sum is 23376384
The reverse of 18805213 is 31250881
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million eight hundred five thousand two hundred thirteen
Scientific notation
1.8805213 × 10^7
Engineering notation
1.8805213 × 10^6
Prime Factorization
7 × 17 × 37 × 4271
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18805213
Product of the distinct prime numbers
The prime factorization of 18805213 is 7 × 17 × 37 × 4271.
Since it has a total of 4 prime factors.
5 , 9 , 18 , 68 , 851 , 246 , 346 , 2208 , 12583 , 99350 , 555329 , 41136 , 6269602 , 4193267 , 86649874 , 81523860 , 23878543 , 344612098 , 6435128092 , 8061316256
n×2
37610426
n×3
56415639
n×4
75220852
n×5
94026065
n÷2
9402606.5
n÷3
6268404.3333333
n÷3
4701303.25
n÷5
3761042.6
n2
353636035975369
n3
6.6502009809925E+21
n4
1.2505844594037E+29
n5
2.3517507133577E+36
2 √n
4336.4977804676
3 √n
265.92515372101
4 √n
65.852090175389
5 √n
28.500708178076
1 , 7 , 17 , 37 , 119 , 259 , 629 , 4271 , 4403 , 29897 , 72607 , 158027 , 508249 , 1106189 , 2686459 , 18805213
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18805212
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18805213 can be divided by 16 positive divisors.
The sum of these divisors (counting 18805213) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000111101111000111011101
3
Ternary
1022101101220101
4
Quaternary
1013233013131
5
Quinary
14303231323
6
Senary
1511021101
8
Octal
107570735
10
Decimal
18805213
12
Duodecimal
636a791
16
Hexadecimal
11ef1dd
20
Vigesimal
5had0d
36
Base36
b7271
md5
dae39d579bd239be5000c54c79cf9e3e
sha1
9c4b121260e08d28365158408ae6182f8c2992fe
sha256
797dae9369d951f085577cdc92b94e7f9b191236920c701344ab466da4d6c4f5
sha512
4391b3dd7ce5bbff841631baba86a4928d2417a5ce792967268fda6847b6796a4059ef98dcacb1c93c59c52ad261298ac7c7915226eb062a1cff953162feb3e6
ripemd-160
fa0271de0def161266893ad1f210c1c5d1b6d4dc
Diameter
37610426
Circumference
118156638.01998
Area
1.1109803726648E+15
Volume
2.7856296729042E+22
Surface area
4.4439214906593E+15
Circumference
118156638.01998
Perimeter
75220852
Area
353636035975369
Diagonal
26594587.267915
Surface area
2121816215852214
Volume
6.6502009809925E+21
Space diagonal
32571584.363155
Perimeter
56415639
Area
1.5312889542415E+14
Altitude
16285792.181577
Surface area
1.5312889542415E+14
Volume
7.837337016522E+20
Height
8864862.4226383