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12351140 = 2251932503
BaseRepresentation
bin101111000111…
…011010100100
3212020111120122
4233013122210
511130214030
61120421112
7206661104
oct57073244
925214518
1012351140
116a7665a
124177798
132735a89
1418d7204
15113e8e5
hexbc76a4

12351140 has 24 divisors (see below), whose sum is σ = 27303360. Its totient is φ = 4680288.

The previous prime is 12351133. The next prime is 12351193. The reversal of 12351140 is 4115321.

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 7 ways as a sum of consecutive naturals, for example, 15872 + ... + 16631.

It is an arithmetic number, because the mean of its divisors is an integer number (1137640).

Almost surely, 212351140 is an apocalyptic number.

12351140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12351140 is an abundant number, since it is smaller than the sum of its proper divisors (14952220).

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

12351140 is a wasteful number, since it uses less digits than its factorization.

12351140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32531 (or 32529 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12351140 is about 3514.4188708804. The cubic root of 12351140 is about 231.1544976963.

Adding to 12351140 its reverse (4115321), we get a palindrome (16466461).

The spelling of 12351140 in words is "twelve million, three hundred fifty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 32503 65006 130012 162515 325030 617557 650060 1235114 2470228 3087785 6175570 12351140