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12168284 = 2219295521
BaseRepresentation
bin101110011010…
…110001011100
3211220012202012
4232122301130
511103341114
61112450352
7205300022
oct56326134
924805665
1012168284
116961237
1240a99b8
1326a078b
14188a712
15110563e
hexb9ac5c

12168284 has 24 divisors (see below), whose sum is σ = 23192400. Its totient is φ = 5564160.

The previous prime is 12168283. The next prime is 12168287. The reversal of 12168284 is 48286121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12168284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12168281) by changing a digit.

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, 557 + ... + 4964.

It is an arithmetic number, because the mean of its divisors is an integer number (966350).

Almost surely, 212168284 is an apocalyptic number.

It is an amenable number.

12168284 is a deficient number, since it is larger than the sum of its proper divisors (11024116).

12168284 is a wasteful number, since it uses less digits than its factorization.

12168284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5573 (or 5571 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 12168284 is about 3488.3067525664. The cubic root of 12168284 is about 230.0080904526.

The spelling of 12168284 in words is "twelve million, one hundred sixty-eight thousand, two hundred eighty-four".

Divisors: 1 2 4 19 29 38 58 76 116 551 1102 2204 5521 11042 22084 104899 160109 209798 320218 419596 640436 3042071 6084142 12168284