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13627231 is a prime number
BaseRepresentation
bin110011111110…
…111101011111
3221122100001021
4303332331133
511442032411
61204025011
7223554352
oct63767537
927570037
1013627231
117768382
124692167
132a91867
141b4a299
1512e2a71
hexcfef5f

13627231 has 2 divisors, whose sum is σ = 13627232. Its totient is φ = 13627230.

The previous prime is 13627213. The next prime is 13627261. The reversal of 13627231 is 13272631.

13627231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (13627213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13627231 - 215 = 13594463 is a prime.

It is a super-2 number, since 2×136272312 = 371402849454722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13627196 and 13627205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13627261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6813615 + 6813616.

It is an arithmetic number, because the mean of its divisors is an integer number (6813616).

Almost surely, 213627231 is an apocalyptic number.

13627231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13627231 is an equidigital number, since it uses as much as digits as its factorization.

13627231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 25.

The square root of 13627231 is about 3691.5079574613. The cubic root of 13627231 is about 238.8558446291.

Adding to 13627231 its reverse (13272631), we get a palindrome (26899862).

The spelling of 13627231 in words is "thirteen million, six hundred twenty-seven thousand, two hundred thirty-one".