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12240892 = 227938737
BaseRepresentation
bin101110101100…
…011111111100
3212000220100101
4232230133330
511113202032
61114210444
7206021506
oct56543774
925026311
1012240892
116a00844
124123a24
1326c7841
1418a8d76
15111bde7
hexbac7fc

12240892 has 12 divisors (see below), whose sum is σ = 21693280. Its totient is φ = 6042816.

The previous prime is 12240889. The next prime is 12240911. The reversal of 12240892 is 29804221.

It is a self number, because there is not a number n which added to its sum of digits gives 12240892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19053 + ... + 19684.

Almost surely, 212240892 is an apocalyptic number.

It is an amenable number.

12240892 is a deficient number, since it is larger than the sum of its proper divisors (9452388).

12240892 is a wasteful number, since it uses less digits than its factorization.

12240892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38820 (or 38818 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12240892 is about 3498.6986151997. The cubic root of 12240892 is about 230.4646686639.

It can be divided in two parts, 122408 and 92, that added together give a square (122500 = 3502).

The spelling of 12240892 in words is "twelve million, two hundred forty thousand, eight hundred ninety-two".

Divisors: 1 2 4 79 158 316 38737 77474 154948 3060223 6120446 12240892