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12986210 = 2531163257
BaseRepresentation
bin110001100010…
…011101100010
3220102202201202
4301202131202
511311024320
61142201202
7215244446
oct61423542
926382652
1012986210
11736a806
124423202
1328c8b63
141a20826
151217b75
hexc62762

12986210 has 32 divisors (see below), whose sum is σ = 24371712. Its totient is φ = 4976640.

The previous prime is 12986209. The next prime is 12986213. The reversal of 12986210 is 1268921.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12986213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50402 + ... + 50658.

It is an arithmetic number, because the mean of its divisors is an integer number (761616).

Almost surely, 212986210 is an apocalyptic number.

12986210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12986210 is a deficient number, since it is larger than the sum of its proper divisors (11385502).

12986210 is a wasteful number, since it uses less digits than its factorization.

12986210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12986210 is about 3603.6384391334. The cubic root of 12986210 is about 235.0502985741.

The spelling of 12986210 in words is "twelve million, nine hundred eighty-six thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 163 257 310 326 514 815 1285 1630 2570 5053 7967 10106 15934 25265 39835 41891 50530 79670 83782 209455 418910 1298621 2597242 6493105 12986210