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223248928 = 257996647
BaseRepresentation
bin11010100111010…
…00001000100000
3120120002012221211
431103220020200
5424122431203
634052555504
75350404340
oct1523501040
9516065854
10223248928
11105022251
1262922b94
1337337476
1421914d20
15148ecc6d
hexd4e8220

223248928 has 24 divisors (see below), whose sum is σ = 502310592. Its totient is φ = 95678016.

The previous prime is 223248911. The next prime is 223248929. The reversal of 223248928 is 829842322.

It is a super-3 number, since 3×2232489283 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223248929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498100 + ... + 498547.

It is an arithmetic number, because the mean of its divisors is an integer number (20929608).

Almost surely, 2223248928 is an apocalyptic number.

223248928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

223248928 is an abundant number, since it is smaller than the sum of its proper divisors (279061664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223248928 is an equidigital number, since it uses as much as digits as its factorization.

223248928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996664 (or 996656 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 223248928 is about 14941.5169243287. The cubic root of 223248928 is about 606.6382554554.

The spelling of 223248928 in words is "two hundred twenty-three million, two hundred forty-eight thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 996647 1993294 3986588 6976529 7973176 13953058 15946352 27906116 31892704 55812232 111624464 223248928