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12855038 = 275979197
BaseRepresentation
bin110001000010…
…011011111110
3220012002210112
4301002123332
511242330123
61135310022
7214160150
oct61023376
926162715
1012855038
1172901a9
12437b312
132881241
1419c8ad0
1511ddd78
hexc426fe

12855038 has 32 divisors (see below), whose sum is σ = 22809600. Its totient is φ = 5320224.

The previous prime is 12855023. The next prime is 12855041. The reversal of 12855038 is 83055821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12854995 and 12855013.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65156 + ... + 65352.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 212855038 is an apocalyptic number.

12855038 is a deficient number, since it is larger than the sum of its proper divisors (9954562).

12855038 is a wasteful number, since it uses less digits than its factorization.

12855038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 12855038 is about 3585.3923076841. The cubic root of 12855038 is about 234.2562148419.

The spelling of 12855038 in words is "twelve million, eight hundred fifty-five thousand, thirty-eight".

Divisors: 1 2 7 14 59 79 118 158 197 394 413 553 826 1106 1379 2758 4661 9322 11623 15563 23246 31126 32627 65254 81361 108941 162722 217882 918217 1836434 6427519 12855038