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12839910 = 235427997
BaseRepresentation
bin110000111110…
…101111100110
3220011100001020
4300332233212
511241334120
61135112010
7214065066
oct60765746
926140036
1012839910
11727a8a6
124372606
1328773a5
1419c33a6
1511d9640
hexc3ebe6

12839910 has 16 divisors (see below), whose sum is σ = 30815856. Its totient is φ = 3423968.

The previous prime is 12839909. The next prime is 12839927. The reversal of 12839910 is 1993821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213969 + ... + 214028.

It is an arithmetic number, because the mean of its divisors is an integer number (1925991).

Almost surely, 212839910 is an apocalyptic number.

12839910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12839910 is an abundant number, since it is smaller than the sum of its proper divisors (17975946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12839910 is a wasteful number, since it uses less digits than its factorization.

12839910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428007.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 12839910 is about 3583.2820151364. The cubic root of 12839910 is about 234.1642867053.

The spelling of 12839910 in words is "twelve million, eight hundred thirty-nine thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 30 427997 855994 1283991 2139985 2567982 4279970 6419955 12839910