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243050231 = 1133496163
BaseRepresentation
bin11100111110010…
…10011011110111
3121221100020020102
432133022123313
5444210101411
640041224315
76010615154
oct1637123367
9557306212
10243050231
11115217266
126949209b
133b47b308
14243cb22b
151650ed3b
hexe7ca6f7

243050231 has 8 divisors (see below), whose sum is σ = 245943600. Its totient is φ = 240170112.

The previous prime is 243050219. The next prime is 243050243. The reversal of 243050231 is 132050342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243050219) and next prime (243050243).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-243050231 is a prime.

It is a super-2 number, since 2×2430502312 = 118146829578306722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243053231) 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 in 7 ways as a sum of consecutive naturals, for example, 36356 + ... + 42518.

It is an arithmetic number, because the mean of its divisors is an integer number (30742950).

Almost surely, 2243050231 is an apocalyptic number.

243050231 is a deficient number, since it is larger than the sum of its proper divisors (2893369).

243050231 is a wasteful number, since it uses less digits than its factorization.

243050231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 243050231 is about 15590.0683449432. The cubic root of 243050231 is about 624.0681417682.

The spelling of 243050231 in words is "two hundred forty-three million, fifty thousand, two hundred thirty-one".

Divisors: 1 113 349 6163 39437 696419 2150887 243050231