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13672231 is a prime number
BaseRepresentation
bin110100001001…
…111100100111
3221201121202221
4310021330213
512000002411
61205013211
7224132506
oct64117447
927647687
1013672231
117799171
1246b4207
132aa91a1
141b5c83d
151301071
hexd09f27

13672231 has 2 divisors, whose sum is σ = 13672232. Its totient is φ = 13672230.

The previous prime is 13672223. The next prime is 13672261. The reversal of 13672231 is 13227631.

It is a weak prime.

It is an emirp because it is prime and its reverse (13227631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13672231 - 23 = 13672223 is a prime.

It is a super-2 number, since 2×136722312 = 373859801034722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13672196 and 13672205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13672261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6836115 + 6836116.

It is an arithmetic number, because the mean of its divisors is an integer number (6836116).

Almost surely, 213672231 is an apocalyptic number.

13672231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13672231 is an equidigital number, since it uses as much as digits as its factorization.

13672231 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 13672231 is about 3697.5980041102. The cubic root of 13672231 is about 239.1184732678.

Adding to 13672231 its reverse (13227631), we get a palindrome (26899862).

The spelling of 13672231 in words is "thirteen million, six hundred seventy-two thousand, two hundred thirty-one".