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12682215 = 32571319163
BaseRepresentation
bin110000011000…
…001111100111
3212212022201200
4300120033213
511221312330
61131453543
7212540250
oct60301747
925768650
1012682215
117182377
1242b72b3
132820690
141981b27
1511a7a60
hexc183e7

12682215 has 96 divisors (see below), whose sum is σ = 28654080. Its totient is φ = 5038848.

The previous prime is 12682213. The next prime is 12682237. The reversal of 12682215 is 51228621.

It is a happy number.

12682215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12682215 - 21 = 12682213 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12682213) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77724 + ... + 77886.

It is an arithmetic number, because the mean of its divisors is an integer number (298480).

Almost surely, 212682215 is an apocalyptic number.

12682215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12682215 is an abundant number, since it is smaller than the sum of its proper divisors (15971865).

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

12682215 is a wasteful number, since it uses less digits than its factorization.

12682215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 210 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 12682215 is about 3561.2097663575. The cubic root of 12682215 is about 233.2016955903.

The spelling of 12682215 in words is "twelve million, six hundred eighty-two thousand, two hundred fifteen".

Divisors: 1 3 5 7 9 13 15 19 21 35 39 45 57 63 65 91 95 105 117 133 163 171 195 247 273 285 315 399 455 489 585 665 741 815 819 855 1141 1197 1235 1365 1467 1729 1995 2119 2223 2445 3097 3423 3705 4095 5187 5705 5985 6357 7335 8645 9291 10269 10595 11115 14833 15485 15561 17115 19071 21679 25935 27873 31785 40261 44499 46455 51345 65037 74165 77805 95355 108395 120783 133497 139365 195111 201305 222495 281827 325185 362349 603915 667485 845481 975555 1409135 1811745 2536443 4227405 12682215