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13123124 = 227468683
BaseRepresentation
bin110010000011…
…111000110100
3220200201112122
4302003320310
511324414444
61145135112
7216354560
oct62037064
926621478
1013123124
117453663
12448a498
132946281
141a586a0
1512434ee
hexc83e34

13123124 has 12 divisors (see below), whose sum is σ = 26246304. Its totient is φ = 5624184.

The previous prime is 13123111. The next prime is 13123147. The reversal of 13123124 is 42132131.

13123124 is an admirable number.

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, 234314 + ... + 234369.

It is an arithmetic number, because the mean of its divisors is an integer number (2187192).

Almost surely, 213123124 is an apocalyptic number.

13123124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13123124 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.

13123124 is a wasteful number, since it uses less digits than its factorization.

13123124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468694 (or 468692 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 13123124 is about 3622.5852646970. The cubic root of 13123124 is about 235.8734598849.

Adding to 13123124 its reverse (42132131), we get a palindrome (55255255).

The spelling of 13123124 in words is "thirteen million, one hundred twenty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 468683 937366 1874732 3280781 6561562 13123124