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223830243 = 3371391099
BaseRepresentation
bin11010101011101…
…10000011100011
3120121011202101000
431111312003203
5424300031433
634113243043
75355345210
oct1525660343
9517152330
10223830243
11105389a7a
1262b63483
13374abc40
1421a26b07
15149b5113
hexd5760e3

223830243 has 32 divisors (see below), whose sum is σ = 408128000. Its totient is φ = 118063008.

The previous prime is 223830223. The next prime is 223830253. The reversal of 223830243 is 342038322.

It is not a de Polignac number, because 223830243 - 28 = 223829987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (223830223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43093 + ... + 48006.

It is an arithmetic number, because the mean of its divisors is an integer number (12754000).

Almost surely, 2223830243 is an apocalyptic number.

223830243 is a deficient number, since it is larger than the sum of its proper divisors (184297757).

223830243 is a wasteful number, since it uses less digits than its factorization.

223830243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91128 (or 91122 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 223830243 is about 14960.9572888903. The cubic root of 223830243 is about 607.1643382718.

Adding to 223830243 its reverse (342038322), we get a palindrome (565868565).

The spelling of 223830243 in words is "two hundred twenty-three million, eight hundred thirty thousand, two hundred forty-three".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 189 273 351 819 2457 91099 273297 637693 819891 1184287 1913079 2459673 3552861 5739237 8290009 10658583 17217711 24870027 31975749 74610081 223830243