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12387032 = 237221197
BaseRepresentation
bin101111010000…
…001011011000
3212022022210222
4233100023120
511132341112
61121255212
7210200540
oct57201330
925268728
1012387032
116aa0619
124194508
132749208
141906320
15114a372
hexbd02d8

12387032 has 16 divisors (see below), whose sum is σ = 26543760. Its totient is φ = 5308704.

The previous prime is 12387029. The next prime is 12387059. The reversal of 12387032 is 23078321.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12386992 and 12387010.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110543 + ... + 110654.

It is an arithmetic number, because the mean of its divisors is an integer number (1658985).

Almost surely, 212387032 is an apocalyptic number.

It is an amenable number.

12387032 is an abundant number, since it is smaller than the sum of its proper divisors (14156728).

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

12387032 is a wasteful number, since it uses less digits than its factorization.

12387032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221210 (or 221206 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12387032 is about 3519.5215583940. The cubic root of 12387032 is about 231.3781902363.

The spelling of 12387032 in words is "twelve million, three hundred eighty-seven thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 221197 442394 884788 1548379 1769576 3096758 6193516 12387032