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223468940 = 22585313099
BaseRepresentation
bin11010101000111…
…01110110001100
3120120111101202102
431110131312030
5424202001230
634101414232
75352311642
oct1524356614
9516441672
10223468940
11105162582
1262a0a378
13373b3656
1421971192
1514943045
hexd51dd8c

223468940 has 24 divisors (see below), whose sum is σ = 469870800. Its totient is φ = 89275968.

The previous prime is 223468909. The next prime is 223468981. The reversal of 223468940 is 49864322.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 223468894 and 223468903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10511 + ... + 23609.

It is an arithmetic number, because the mean of its divisors is an integer number (19577950).

Almost surely, 2223468940 is an apocalyptic number.

223468940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223468940 is an abundant number, since it is smaller than the sum of its proper divisors (246401860).

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

223468940 is a wasteful number, since it uses less digits than its factorization.

223468940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13961 (or 13959 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 223468940 is about 14948.8775498363. The cubic root of 223468940 is about 606.8374708587.

The spelling of 223468940 in words is "two hundred twenty-three million, four hundred sixty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 853 1706 3412 4265 8530 13099 17060 26198 52396 65495 130990 261980 11173447 22346894 44693788 55867235 111734470 223468940