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12840882 = 2317312131
BaseRepresentation
bin110000111110…
…111110110010
3220011101101020
4300332332302
511241402012
61135120310
7214100655
oct60767662
926141336
1012840882
1172805aa
124373096
132877972
1419c389c
1511d9a8c
hexc3efb2

12840882 has 48 divisors (see below), whose sum is σ = 28312416. Its totient is φ = 3868800.

The previous prime is 12840871. The next prime is 12840911. The reversal of 12840882 is 28804821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97957 + ... + 98087.

It is an arithmetic number, because the mean of its divisors is an integer number (589842).

Almost surely, 212840882 is an apocalyptic number.

12840882 is an abundant number, since it is smaller than the sum of its proper divisors (15471534).

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

12840882 is a wasteful number, since it uses less digits than its factorization.

12840882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 12840882 is about 3583.4176424190. The cubic root of 12840882 is about 234.1701954160.

The spelling of 12840882 in words is "twelve million, eight hundred forty thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 17 31 34 51 62 93 102 131 186 262 393 527 786 961 1054 1581 1922 2227 2883 3162 4061 4454 5766 6681 8122 12183 13362 16337 24366 32674 49011 69037 98022 125891 138074 207111 251782 377673 414222 755346 2140147 4280294 6420441 12840882