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230465239 is a prime number
BaseRepresentation
bin11011011110010…
…01111011010111
3121001122211212121
431233021323113
5432444341424
634511400411
75465631214
oct1557117327
9531584777
10230465239
11109100a44
1265223107
1338992c84
1422872b0b
1515375ee4
hexdbc9ed7

230465239 has 2 divisors, whose sum is σ = 230465240. Its totient is φ = 230465238.

The previous prime is 230465189. The next prime is 230465273. The reversal of 230465239 is 932564032.

It is an a-pointer prime, because the next prime (230465273) can be obtained adding 230465239 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230465239 - 213 = 230457047 is a prime.

It is a super-2 number, since 2×2304652392 = 106228452774654242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230465539) 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, 115232619 + 115232620.

It is an arithmetic number, because the mean of its divisors is an integer number (115232620).

Almost surely, 2230465239 is an apocalyptic number.

230465239 is a deficient number, since it is larger than the sum of its proper divisors (1).

230465239 is an equidigital number, since it uses as much as digits as its factorization.

230465239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 230465239 is about 15181.0816149575. The cubic root of 230465239 is about 613.1054030250.

The spelling of 230465239 in words is "two hundred thirty million, four hundred sixty-five thousand, two hundred thirty-nine".