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12214992 = 243318209
BaseRepresentation
bin101110100110…
…001011010000
3211222120211010
4232212023100
511111334432
61113450520
7205553136
oct56461320
924876733
1012214992
116993339
124110a40
1326b8b0a
14189d756
1511143cc
hexba62d0

12214992 has 40 divisors (see below), whose sum is σ = 32577280. Its totient is φ = 3939840.

The previous prime is 12214991. The next prime is 12214997. The reversal of 12214992 is 29941221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12214991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (814432).

Almost surely, 212214992 is an apocalyptic number.

12214992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12214992 is an abundant number, since it is smaller than the sum of its proper divisors (20362288).

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

12214992 is a wasteful number, since it uses less digits than its factorization.

12214992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8251 (or 8245 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 12214992 is about 3494.9952789668. The cubic root of 12214992 is about 230.3020103175.

The spelling of 12214992 in words is "twelve million, two hundred fourteen thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 186 248 372 496 744 1488 8209 16418 24627 32836 49254 65672 98508 131344 197016 254479 394032 508958 763437 1017916 1526874 2035832 3053748 4071664 6107496 12214992