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11408231 is a prime number
BaseRepresentation
bin101011100001…
…001101100111
3210110121011002
4223201031213
510410030411
61044303515
7165653102
oct53411547
923417132
1011408231
11649219a
1239a1b9b
132495843
14172d739
15100533b
hexae1367

11408231 has 2 divisors, whose sum is σ = 11408232. Its totient is φ = 11408230.

The previous prime is 11408213. The next prime is 11408261. The reversal of 11408231 is 13280411.

Together with previous prime (11408213) 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 11408231 - 26 = 11408167 is a prime.

It is a super-2 number, since 2×114082312 = 260295469098722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11408261) 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, 5704115 + 5704116.

It is an arithmetic number, because the mean of its divisors is an integer number (5704116).

Almost surely, 211408231 is an apocalyptic number.

11408231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11408231 is an equidigital number, since it uses as much as digits as its factorization.

11408231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11408231 is about 3377.6072891916. The cubic root of 11408231 is about 225.1158646047.

Adding to 11408231 its reverse (13280411), we get a palindrome (24688642).

The spelling of 11408231 in words is "eleven million, four hundred eight thousand, two hundred thirty-one".