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12543308 = 226151407
BaseRepresentation
bin101111110110…
…010101001100
3212121021011222
4233312111030
511202341213
61124502512
7211421261
oct57662514
925537158
1012543308
117097a78
12424aa38
1327a239b
141947268
15117b808
hexbf654c

12543308 has 12 divisors (see below), whose sum is σ = 22311072. Its totient is φ = 6168720.

The previous prime is 12543301. The next prime is 12543319. The reversal of 12543308 is 80334521.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543301) 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, 25460 + ... + 25947.

It is an arithmetic number, because the mean of its divisors is an integer number (1859256).

Almost surely, 212543308 is an apocalyptic number.

It is an amenable number.

12543308 is a deficient number, since it is larger than the sum of its proper divisors (9767764).

12543308 is a wasteful number, since it uses less digits than its factorization.

12543308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51472 (or 51470 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 12543308 is about 3541.6532862492. The cubic root of 12543308 is about 232.3471566452.

Adding to 12543308 its reverse (80334521), we get a palindrome (92877829).

The spelling of 12543308 in words is "twelve million, five hundred forty-three thousand, three hundred eight".

Divisors: 1 2 4 61 122 244 51407 102814 205628 3135827 6271654 12543308