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12320284 = 2219162109
BaseRepresentation
bin101110111111…
…111000011100
3212011221020211
4232333320130
511123222114
61120022204
7206502124
oct56777034
925157224
1012320284
116a55459
124161964
132724a12
1418c9c84
1511356c4
hexbbfe1c

12320284 has 12 divisors (see below), whose sum is σ = 22695400. Its totient is φ = 5835888.

The previous prime is 12320267. The next prime is 12320309. The reversal of 12320284 is 48202321.

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, 80979 + ... + 81130.

Almost surely, 212320284 is an apocalyptic number.

It is an amenable number.

12320284 is a deficient number, since it is larger than the sum of its proper divisors (10375116).

12320284 is a wasteful number, since it uses less digits than its factorization.

12320284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162132 (or 162130 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 12320284 is about 3510.0262107283. The cubic root of 12320284 is about 230.9618447379.

The spelling of 12320284 in words is "twelve million, three hundred twenty thousand, two hundred eighty-four".

Divisors: 1 2 4 19 38 76 162109 324218 648436 3080071 6160142 12320284