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12555230 = 258914107
BaseRepresentation
bin101111111001…
…001111011110
3212121212112112
4233321033132
511203231410
61125034022
7211501112
oct57711736
925555475
1012555230
1170a5a26
124255912
1327a793c
14194b742
151180105
hexbf93de

12555230 has 16 divisors (see below), whose sum is σ = 22854960. Its totient is φ = 4965312.

The previous prime is 12555199. The next prime is 12555241. The reversal of 12555230 is 3255521.

It is a junction number, because it is equal to n+sod(n) for n = 12555196 and 12555205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6164 + ... + 7943.

It is an arithmetic number, because the mean of its divisors is an integer number (1428435).

Almost surely, 212555230 is an apocalyptic number.

12555230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12555230 is a deficient number, since it is larger than the sum of its proper divisors (10299730).

12555230 is a wasteful number, since it uses less digits than its factorization.

12555230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14203.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 12555230 is about 3543.3359987447. The cubic root of 12555230 is about 232.4207461017.

It can be divided in two parts, 125 and 55230, that added together give a palindrome (55355).

The spelling of 12555230 in words is "twelve million, five hundred fifty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 89 178 445 890 14107 28214 70535 141070 1255523 2511046 6277615 12555230