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12818230 = 251281823
BaseRepresentation
bin110000111001…
…011100110110
3220010020022021
4300321130312
511240140410
61134423354
7213644635
oct60713466
926106267
1012818230
117265587
124361b5a
13286a569
1419b951c
1511d2eda
hexc39736

12818230 has 8 divisors (see below), whose sum is σ = 23072832. Its totient is φ = 5127288.

The previous prime is 12818227. The next prime is 12818231. The reversal of 12818230 is 3281821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12818195 and 12818204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12818231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640902 + ... + 640921.

It is an arithmetic number, because the mean of its divisors is an integer number (2884104).

Almost surely, 212818230 is an apocalyptic number.

12818230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12818230 is a deficient number, since it is larger than the sum of its proper divisors (10254602).

12818230 is a wasteful number, since it uses less digits than its factorization.

12818230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281830.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 12818230 is about 3580.2555774693. The cubic root of 12818230 is about 234.0324181351.

The spelling of 12818230 in words is "twelve million, eight hundred eighteen thousand, two hundred thirty".

Divisors: 1 2 5 10 1281823 2563646 6409115 12818230