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231683423 is a prime number
BaseRepresentation
bin11011100111100…
…11010101011111
3121010221201220112
431303303111133
5433302332143
634553440235
75512163606
oct1563632537
9533851815
10231683423
11109863204
126571007b
1338ccb5aa
1422aaca3d
1515516e18
hexdcf355f

231683423 has 2 divisors, whose sum is σ = 231683424. Its totient is φ = 231683422.

The previous prime is 231683401. The next prime is 231683443. The reversal of 231683423 is 324386132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231683423 - 216 = 231617887 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231683423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231683443) 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, 115841711 + 115841712.

It is an arithmetic number, because the mean of its divisors is an integer number (115841712).

Almost surely, 2231683423 is an apocalyptic number.

231683423 is a deficient number, since it is larger than the sum of its proper divisors (1).

231683423 is an equidigital number, since it uses as much as digits as its factorization.

231683423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 231683423 is about 15221.1505149906. The cubic root of 231683423 is about 614.1837480165.

The spelling of 231683423 in words is "two hundred thirty-one million, six hundred eighty-three thousand, four hundred twenty-three".