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230342237 is a prime number
BaseRepresentation
bin11011011101010…
…11111001011101
3121001102121010222
431232223321131
5432431422422
634505011125
75464606466
oct1556537135
9531377128
10230342237
11109027594
1265183aa5
133894bca8
142283dd6d
151534e842
hexdbabe5d

230342237 has 2 divisors, whose sum is σ = 230342238. Its totient is φ = 230342236.

The previous prime is 230342227. The next prime is 230342239. The reversal of 230342237 is 732243032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130622041 + 99720196 = 11429^2 + 9986^2 .

It is a cyclic number.

It is not a de Polignac number, because 230342237 - 24 = 230342221 is a prime.

It is a super-2 number, since 2×2303422372 = 106115092292328338, which contains 22 as substring.

Together with 230342239, 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 (230342239) 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, 115171118 + 115171119.

It is an arithmetic number, because the mean of its divisors is an integer number (115171119).

Almost surely, 2230342237 is an apocalyptic number.

It is an amenable number.

230342237 is a deficient number, since it is larger than the sum of its proper divisors (1).

230342237 is an equidigital number, since it uses as much as digits as its factorization.

230342237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 230342237 is about 15177.0299136557. The cubic root of 230342237 is about 612.9963097674.

Adding to 230342237 its reverse (732243032), we get a palindrome (962585269).

The spelling of 230342237 in words is "two hundred thirty million, three hundred forty-two thousand, two hundred thirty-seven".