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12530524 = 223132631
BaseRepresentation
bin101111110011…
…001101011100
3212120121122111
4233303031130
511201434044
61124323404
7211336066
oct57631534
925517574
1012530524
117089406
124243564
132799616
141942736
151177b34
hexbf335c

12530524 has 6 divisors (see below), whose sum is σ = 21928424. Its totient is φ = 6265260.

The previous prime is 12530521. The next prime is 12530569. The reversal of 12530524 is 42503521.

It is a junction number, because it is equal to n+sod(n) for n = 12530495 and 12530504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566312 + ... + 1566319.

Almost surely, 212530524 is an apocalyptic number.

It is an amenable number.

12530524 is a deficient number, since it is larger than the sum of its proper divisors (9397900).

12530524 is a wasteful number, since it uses less digits than its factorization.

12530524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132635 (or 3132633 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 12530524 is about 3539.8480193364. The cubic root of 12530524 is about 232.2681946008.

The spelling of 12530524 in words is "twelve million, five hundred thirty thousand, five hundred twenty-four".

Divisors: 1 2 4 3132631 6265262 12530524