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12427572 = 2231035631
BaseRepresentation
bin101111011010…
…000100110100
3212101101102110
4233122010310
511140140242
61122211020
7210426663
oct57320464
925341373
1012427572
117019023
1241b3a70
1327617c1
141916dda
15115739c
hexbda134

12427572 has 12 divisors (see below), whose sum is σ = 28997696. Its totient is φ = 4142520.

The previous prime is 12427511. The next prime is 12427579. The reversal of 12427572 is 27572421.

12427572 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517804 + ... + 517827.

Almost surely, 212427572 is an apocalyptic number.

12427572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12427572 is an abundant number, since it is smaller than the sum of its proper divisors (16570124).

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

12427572 is a wasteful number, since it uses less digits than its factorization.

12427572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035638 (or 1035636 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 12427572 is about 3525.2761593952. The cubic root of 12427572 is about 231.6303318157.

Adding to 12427572 its reverse (27572421), we get a palindrome (39999993).

The spelling of 12427572 in words is "twelve million, four hundred twenty-seven thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 1035631 2071262 3106893 4142524 6213786 12427572