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12255223 = 17536991
BaseRepresentation
bin101110101111…
…111111110111
3212001122000011
4232233333313
511114131343
61114401051
7206111341
oct56577767
925048004
1012255223
116a10592
124130187
132701216
1418b0291
15112129d
hexbafff7

12255223 has 4 divisors (see below), whose sum is σ = 12263968. Its totient is φ = 12246480.

The previous prime is 12255179. The next prime is 12255227. The reversal of 12255223 is 32255221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12255223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12255194 and 12255203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255227) 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, 1743 + ... + 5248.

It is an arithmetic number, because the mean of its divisors is an integer number (3065992).

Almost surely, 212255223 is an apocalyptic number.

12255223 is a deficient number, since it is larger than the sum of its proper divisors (8745).

12255223 is an equidigital number, since it uses as much as digits as its factorization.

12255223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744.

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

The square root of 12255223 is about 3500.7460633414. The cubic root of 12255223 is about 230.5545722726.

The spelling of 12255223 in words is "twelve million, two hundred fifty-five thousand, two hundred twenty-three".

Divisors: 1 1753 6991 12255223