Search a number
-
+
231450283 is a prime number
BaseRepresentation
bin11011100101110…
…10011010101011
3121010111220002201
431302322122223
5433222402113
634544441031
75510203111
oct1562723253
9533456081
10231450283
11109714029
1265619177
1338c4943c
1422a4bab1
15154bccdd
hexdcba6ab

231450283 has 2 divisors, whose sum is σ = 231450284. Its totient is φ = 231450282.

The previous prime is 231450269. The next prime is 231450293. The reversal of 231450283 is 382054132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231450283 - 225 = 197895851 is a prime.

It is not a weakly prime, because it can be changed into another prime (231450293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115725141 + 115725142.

It is an arithmetic number, because the mean of its divisors is an integer number (115725142).

Almost surely, 2231450283 is an apocalyptic number.

231450283 is a deficient number, since it is larger than the sum of its proper divisors (1).

231450283 is an equidigital number, since it uses as much as digits as its factorization.

231450283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 231450283 is about 15213.4901649819. The cubic root of 231450283 is about 613.9776638488.

The spelling of 231450283 in words is "two hundred thirty-one million, four hundred fifty thousand, two hundred eighty-three".