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230241287 is a prime number
BaseRepresentation
bin11011011100100…
…11010000000111
3121001020110200002
431232103100013
5432420210122
634502511515
75464006253
oct1556232007
9531213602
10230241287
11108a68761
126513559b
1338915063
1422815263
151532e992
hexdb93407

230241287 has 2 divisors, whose sum is σ = 230241288. Its totient is φ = 230241286.

The previous prime is 230241257. The next prime is 230241289. The reversal of 230241287 is 782142032.

230241287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230241287 - 212 = 230237191 is a prime.

It is a super-2 number, since 2×2302412872 = 106022100478832738, which contains 22 as substring.

Together with 230241289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230241289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115120643 + 115120644.

It is an arithmetic number, because the mean of its divisors is an integer number (115120644).

Almost surely, 2230241287 is an apocalyptic number.

230241287 is a deficient number, since it is larger than the sum of its proper divisors (1).

230241287 is an equidigital number, since it uses as much as digits as its factorization.

230241287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 230241287 is about 15173.7037996661. The cubic root of 230241287 is about 612.9067459071.

The spelling of 230241287 in words is "two hundred thirty million, two hundred forty-one thousand, two hundred eighty-seven".