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231675293 is a prime number
BaseRepresentation
bin11011100111100…
…01010110011101
3121010221022202102
431303301112131
5433302102133
634553334445
75512131113
oct1563612635
9533838672
10231675293
11109858093
1265707425
1338cc7995
1422aa9ab3
15155147e8
hexdcf159d

231675293 has 2 divisors, whose sum is σ = 231675294. Its totient is φ = 231675292.

The previous prime is 231675289. The next prime is 231675299. The reversal of 231675293 is 392576132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171426649 + 60248644 = 13093^2 + 7762^2 .

It is a cyclic number.

It is not a de Polignac number, because 231675293 - 22 = 231675289 is a 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 (231675299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115837646 + 115837647.

It is an arithmetic number, because the mean of its divisors is an integer number (115837647).

Almost surely, 2231675293 is an apocalyptic number.

It is an amenable number.

231675293 is a deficient number, since it is larger than the sum of its proper divisors (1).

231675293 is an equidigital number, since it uses as much as digits as its factorization.

231675293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 231675293 is about 15220.8834500498. The cubic root of 231675293 is about 614.1765638279.

The spelling of 231675293 in words is "two hundred thirty-one million, six hundred seventy-five thousand, two hundred ninety-three".