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231074269 is a prime number
BaseRepresentation
bin11011100010111…
…10100111011101
3121002210210022021
431301132213131
5433123334034
634532420141
75504045626
oct1561364735
9532723267
10231074269
11109487578
1265477651
1338b4724a
1422990a4d
15154466b4
hexdc5e9dd

231074269 has 2 divisors, whose sum is σ = 231074270. Its totient is φ = 231074268.

The previous prime is 231074227. The next prime is 231074309. The reversal of 231074269 is 962470132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173238244 + 57836025 = 13162^2 + 7605^2 .

It is a cyclic number.

It is not a de Polignac number, because 231074269 - 27 = 231074141 is a prime.

It is a super-2 number, since 2×2310742692 = 106790635587768722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231074209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115537134 + 115537135.

It is an arithmetic number, because the mean of its divisors is an integer number (115537135).

Almost surely, 2231074269 is an apocalyptic number.

It is an amenable number.

231074269 is a deficient number, since it is larger than the sum of its proper divisors (1).

231074269 is an equidigital number, since it uses as much as digits as its factorization.

231074269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 231074269 is about 15201.1272279394. The cubic root of 231074269 is about 613.6449943760.

The spelling of 231074269 in words is "two hundred thirty-one million, seventy-four thousand, two hundred sixty-nine".