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12287324 = 227438833
BaseRepresentation
bin101110110111…
…110101011100
3212010021001002
4232313311130
511121143244
61115205432
7206304050
oct56676534
925107032
1012287324
116a32715
124146878
132712a0a
1418bbc60
15112aa4e
hexbb7d5c

12287324 has 12 divisors (see below), whose sum is σ = 24574704. Its totient is φ = 5265984.

The previous prime is 12287321. The next prime is 12287333. The reversal of 12287324 is 42378221.

12287324 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219389 + ... + 219444.

It is an arithmetic number, because the mean of its divisors is an integer number (2047892).

Almost surely, 212287324 is an apocalyptic number.

12287324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12287324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12287324 is a wasteful number, since it uses less digits than its factorization.

12287324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438844 (or 438842 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 12287324 is about 3505.3279447150. The cubic root of 12287324 is about 230.7556995713.

The spelling of 12287324 in words is "twelve million, two hundred eighty-seven thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 438833 877666 1755332 3071831 6143662 12287324