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13240132 = 223479539
BaseRepresentation
bin110010100000…
…011101000100
3220220200001021
4302200131010
511342141012
61151440524
7220352653
oct62403504
926820037
1013240132
117523564
124526144
1329875c9
141a8919a
151268007
hexca0744

13240132 has 12 divisors (see below), whose sum is σ = 23239440. Its totient is φ = 6600296.

The previous prime is 13240109. The next prime is 13240141. The reversal of 13240132 is 23104231.

It is a happy 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, 3382 + ... + 6157.

It is an arithmetic number, because the mean of its divisors is an integer number (1936620).

Almost surely, 213240132 is an apocalyptic number.

It is an amenable number.

13240132 is a deficient number, since it is larger than the sum of its proper divisors (9999308).

13240132 is a wasteful number, since it uses less digits than its factorization.

13240132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890 (or 9888 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13240132 is about 3638.6992181273. The cubic root of 13240132 is about 236.5724159077.

Adding to 13240132 its reverse (23104231), we get a palindrome (36344363).

The spelling of 13240132 in words is "thirteen million, two hundred forty thousand, one hundred thirty-two".

Divisors: 1 2 4 347 694 1388 9539 19078 38156 3310033 6620066 13240132