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12267992 = 2311139409
BaseRepresentation
bin101110110011…
…000111011000
3212002021112002
4232303013120
511120033432
61114540132
7206163512
oct56630730
925067462
1012267992
116a1a140
124137648
132706c89
1418b4bb2
151124e62
hexbb31d8

12267992 has 16 divisors (see below), whose sum is σ = 25093800. Its totient is φ = 5576320.

The previous prime is 12267973. The next prime is 12268013. The reversal of 12267992 is 29976221.

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 3 ways as a sum of consecutive naturals, for example, 69617 + ... + 69792.

Almost surely, 212267992 is an apocalyptic number.

It is an amenable number.

12267992 is an abundant number, since it is smaller than the sum of its proper divisors (12825808).

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

12267992 is a wasteful number, since it uses less digits than its factorization.

12267992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139426 (or 139422 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 12267992 is about 3502.5693426398. The cubic root of 12267992 is about 230.6346178572.

The spelling of 12267992 in words is "twelve million, two hundred sixty-seven thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 139409 278818 557636 1115272 1533499 3066998 6133996 12267992