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12268285 = 52453657
BaseRepresentation
bin101110110011…
…001011111101
3212002021220221
4232303023331
511120041120
61114541341
7206164411
oct56631375
925067827
1012268285
116a1a387
124137851
132707153
1418b4d41
1511250aa
hexbb32fd

12268285 has 4 divisors (see below), whose sum is σ = 14721948. Its totient is φ = 9814624.

The previous prime is 12268273. The next prime is 12268301. The reversal of 12268285 is 58286221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58286221 = 78326603.

It can be written as a sum of positive squares in 2 ways, for example, as 1338649 + 10929636 = 1157^2 + 3306^2 .

It is a cyclic number.

It is not a de Polignac number, because 12268285 - 25 = 12268253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12268285.

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, 1226824 + ... + 1226833.

It is an arithmetic number, because the mean of its divisors is an integer number (3680487).

Almost surely, 212268285 is an apocalyptic number.

It is an amenable number.

12268285 is a deficient number, since it is larger than the sum of its proper divisors (2453663).

12268285 is an equidigital number, since it uses as much as digits as its factorization.

12268285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453662.

The product of its digits is 15360, while the sum is 34.

The square root of 12268285 is about 3502.6111688282. The cubic root of 12268285 is about 230.6364539470.

The spelling of 12268285 in words is "twelve million, two hundred sixty-eight thousand, two hundred eighty-five".

Divisors: 1 5 2453657 12268285