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285367264 = 2571343253
BaseRepresentation
bin10001000000100…
…101101111100000
3201212222011021221
4101000211233200
51041023223024
644152224424
710033403350
oct2100455740
9655864257
10285367264
1113709a716
127b69b114
1347176690
1429c84b60
151a0bd3e4
hex11025be0

285367264 has 144 divisors (see below), whose sum is σ = 721278432. Its totient is φ = 108186624.

The previous prime is 285367261. The next prime is 285367309. The reversal of 285367264 is 462763582.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 285367264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285367261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5384262 + ... + 5384314.

It is an arithmetic number, because the mean of its divisors is an integer number (5008878).

Almost surely, 2285367264 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 285367264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360639216).

285367264 is an abundant number, since it is smaller than the sum of its proper divisors (435911168).

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

285367264 is a wasteful number, since it uses less digits than its factorization.

285367264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 118 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 285367264 is about 16892.8169350171. The cubic root of 285367264 is about 658.3669943942.

The spelling of 285367264 in words is "two hundred eighty-five million, three hundred sixty-seven thousand, two hundred sixty-four".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 43 52 53 56 86 91 104 106 112 172 182 208 212 224 301 344 364 371 416 424 559 602 688 689 728 742 848 1118 1204 1376 1378 1456 1484 1696 1849 2236 2279 2408 2756 2912 2968 3698 3913 4472 4558 4816 4823 5512 5936 7396 7826 8944 9116 9632 9646 11024 11872 12943 14792 15652 15953 17888 18232 19292 22048 24037 25886 29584 29627 31304 31906 36464 38584 48074 51772 59168 59254 62608 63812 72928 77168 96148 97997 103544 118508 125216 127624 154336 168259 192296 195994 207088 207389 237016 255248 336518 384592 391988 414176 414778 474032 510496 673036 685979 769184 783976 829556 948064 1273961 1346072 1371958 1567952 1659112 2547922 2692144 2743916 3135904 3318224 5095844 5384288 5487832 6636448 8917727 10191688 10975664 17835454 20383376 21951328 35670908 40766752 71341816 142683632 285367264