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248643230 = 25112260393
BaseRepresentation
bin11101101000111…
…11111010011110
3122022212101101112
432310133322132
51002123040410
640401142022
76106301243
oct1664377236
9568771345
10248643230
11118397380
126b32a912
133c688c94
14250455ca
1516c67105
hexed1fe9e

248643230 has 16 divisors (see below), whose sum is σ = 488245104. Its totient is φ = 90415680.

The previous prime is 248643223. The next prime is 248643247. The reversal of 248643230 is 32346842.

It is a congruent number.

It is an unprimeable number.

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, 1130087 + ... + 1130306.

It is an arithmetic number, because the mean of its divisors is an integer number (30515319).

Almost surely, 2248643230 is an apocalyptic number.

248643230 is a deficient number, since it is larger than the sum of its proper divisors (239601874).

248643230 is a wasteful number, since it uses less digits than its factorization.

248643230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260411.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 248643230 is about 15768.4250957412. The cubic root of 248643230 is about 628.8188417259.

The spelling of 248643230 in words is "two hundred forty-eight million, six hundred forty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 2260393 4520786 11301965 22603930 24864323 49728646 124321615 248643230