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223228824 = 233713432377
BaseRepresentation
bin11010100111000…
…11001110011000
3120120001012101020
431103203032120
5424121310244
634052322440
75350261620
oct1523431630
9516035336
10223228824
11105009135
1262913420
133732b280
142190b880
15148e6d19
hexd4e3398

223228824 has 128 divisors (see below), whose sum is σ = 703127040. Its totient is φ = 57480192.

The previous prime is 223228813. The next prime is 223228903. The reversal of 223228824 is 428822322.

223228824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2232288243 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92724 + ... + 95100.

It is an arithmetic number, because the mean of its divisors is an integer number (5493180).

Almost surely, 2223228824 is an apocalyptic number.

223228824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223228824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351563520).

223228824 is an abundant number, since it is smaller than the sum of its proper divisors (479898216).

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

223228824 is a wasteful number, since it uses less digits than its factorization.

223228824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449 (or 2445 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 223228824 is about 14940.8441528583. The cubic root of 223228824 is about 606.6200452574.

The spelling of 223228824 in words is "two hundred twenty-three million, two hundred twenty-eight thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 43 52 56 78 84 86 91 104 129 156 168 172 182 258 273 301 312 344 364 516 546 559 602 728 903 1032 1092 1118 1204 1677 1806 2184 2236 2377 2408 3354 3612 3913 4472 4754 6708 7131 7224 7826 9508 11739 13416 14262 15652 16639 19016 23478 28524 30901 31304 33278 46956 49917 57048 61802 66556 92703 93912 99834 102211 123604 133112 185406 199668 204422 216307 247208 306633 370812 399336 408844 432614 613266 648921 715477 741624 817688 865228 1226532 1297842 1328743 1430954 1730456 2146431 2453064 2595684 2657486 2861908 3986229 4292862 5191368 5314972 5723816 7972458 8585724 9301201 10629944 15944916 17171448 18602402 27903603 31889832 37204804 55807206 74409608 111614412 223228824