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12531252 = 2231044271
BaseRepresentation
bin101111110011…
…011000110100
3212120122122110
4233303120310
511202000002
61124331020
7211341156
oct57633064
925518573
1012531252
117089a08
124243a70
132799a56
141942ad6
151177e6c
hexbf3634

12531252 has 12 divisors (see below), whose sum is σ = 29239616. Its totient is φ = 4177080.

The previous prime is 12531247. The next prime is 12531263. The reversal of 12531252 is 25213521.

It is a tau number, because it is divible by the number of its divisors (12).

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, 522124 + ... + 522147.

Almost surely, 212531252 is an apocalyptic number.

12531252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12531252 is an abundant number, since it is smaller than the sum of its proper divisors (16708364).

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

12531252 is a wasteful number, since it uses less digits than its factorization.

12531252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044278 (or 1044276 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 12531252 is about 3539.9508471164. The cubic root of 12531252 is about 232.2726926295.

Adding to 12531252 its reverse (25213521), we get a palindrome (37744773).

The spelling of 12531252 in words is "twelve million, five hundred thirty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 1044271 2088542 3132813 4177084 6265626 12531252