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230255287 is a prime number
BaseRepresentation
bin11011011100101…
…10101010110111
3121001021011212121
431232112222313
5432421132122
634503100411
75464065133
oct1556265267
9531234777
10230255287
11108a78229
1265141707
133891b542
142281a3c3
1515333bc7
hexdb96ab7

230255287 has 2 divisors, whose sum is σ = 230255288. Its totient is φ = 230255286.

The previous prime is 230255269. The next prime is 230255351. The reversal of 230255287 is 782552032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230255287 - 223 = 221866679 is a prime.

It is equal to p12655816 and since 230255287 and 12655816 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230255237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115127643 + 115127644.

It is an arithmetic number, because the mean of its divisors is an integer number (115127644).

Almost surely, 2230255287 is an apocalyptic number.

230255287 is a deficient number, since it is larger than the sum of its proper divisors (1).

230255287 is an equidigital number, since it uses as much as digits as its factorization.

230255287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 230255287 is about 15174.1651170666. The cubic root of 230255287 is about 612.9191684119.

The spelling of 230255287 in words is "two hundred thirty million, two hundred fifty-five thousand, two hundred eighty-seven".