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223261868 = 2269078081
BaseRepresentation
bin11010100111010…
…11010010101100
3120120002212201002
431103223102230
5424123334433
634053135432
75350460144
oct1523532254
9516085632
10223261868
11105030a45
126292a578
133734031b
1421919924
15149019e8
hexd4eb4ac

223261868 has 12 divisors (see below), whose sum is σ = 390813192. Its totient is φ = 111600960.

The previous prime is 223261861. The next prime is 223261903. The reversal of 223261868 is 868162322.

It is a super-3 number, since 3×2232618683 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223261861) 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, 23588 + ... + 31668.

It is an arithmetic number, because the mean of its divisors is an integer number (32567766).

Almost surely, 2223261868 is an apocalyptic number.

It is an amenable number.

223261868 is a deficient number, since it is larger than the sum of its proper divisors (167551324).

223261868 is a wasteful number, since it uses less digits than its factorization.

223261868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14992 (or 14990 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 223261868 is about 14941.9499396832. The cubic root of 223261868 is about 606.6499759258.

The spelling of 223261868 in words is "two hundred twenty-three million, two hundred sixty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 4 6907 8081 13814 16162 27628 32324 55815467 111630934 223261868