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12252212 = 227467937
BaseRepresentation
bin101110101111…
…010000110100
3212001110212122
4232233100310
511114032322
61114335112
7206066510
oct56572064
925043778
1012252212
116a092a5
12412a498
1326cca3b
1418ad140
151120442
hexbaf434

12252212 has 24 divisors (see below), whose sum is σ = 24583104. Its totient is φ = 5234112.

The previous prime is 12252197. The next prime is 12252259. The reversal of 12252212 is 21225221.

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 7 ways as a sum of consecutive naturals, for example, 12608 + ... + 13544.

It is an arithmetic number, because the mean of its divisors is an integer number (1024296).

Almost surely, 212252212 is an apocalyptic number.

It is an amenable number.

12252212 is an abundant number, since it is smaller than the sum of its proper divisors (12330892).

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

12252212 is a wasteful number, since it uses less digits than its factorization.

12252212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1413 counting only the distinct ones).

The product of its digits is 160, while the sum is 17.

The square root of 12252212 is about 3500.3159857361. The cubic root of 12252212 is about 230.5356889856.

Adding to 12252212 its reverse (21225221), we get a palindrome (33477433).

The spelling of 12252212 in words is "twelve million, two hundred fifty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 467 934 937 1868 1874 3269 3748 6538 6559 13076 13118 26236 437579 875158 1750316 3063053 6126106 12252212