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223053656 = 23779127397
BaseRepresentation
bin11010100101110…
…00011101011000
3120112201022002112
431102320131120
5424100204111
634044451452
75345632130
oct1522703530
9515638075
10223053656
111049a9571
1262849b88
1337299617
14218a3ac0
15148aee8b
hexd4b8758

223053656 has 64 divisors (see below), whose sum is σ = 489062400. Its totient is φ = 93405312.

The previous prime is 223053643. The next prime is 223053659. The reversal of 223053656 is 656350322.

223053656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223053659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561650 + ... + 562046.

It is an arithmetic number, because the mean of its divisors is an integer number (7641600).

Almost surely, 2223053656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223053656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244531200).

223053656 is an abundant number, since it is smaller than the sum of its proper divisors (266008744).

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

223053656 is a wasteful number, since it uses less digits than its factorization.

223053656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 223053656 is about 14934.9809507746. The cubic root of 223053656 is about 606.4613318431.

The spelling of 223053656 in words is "two hundred twenty-three million, fifty-three thousand, six hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 56 79 127 158 254 316 397 508 553 632 794 889 1016 1106 1588 1778 2212 2779 3176 3556 4424 5558 7112 10033 11116 20066 22232 31363 40132 50419 62726 70231 80264 100838 125452 140462 201676 219541 250904 280924 352933 403352 439082 561848 705866 878164 1411732 1756328 2823464 3983101 7966202 15932404 27881707 31864808 55763414 111526828 223053656