Search a number
-
+
228686304 = 25371130937
BaseRepresentation
bin11011010000101…
…11100111100000
3120221022110122010
431220113213200
5432020430204
634405312520
75444541630
oct1550274740
9527273563
10228686304
111080a6450
1264705740
13384bc352
142252c6c0
1515123d89
hexda179e0

228686304 has 96 divisors (see below), whose sum is σ = 748452096. Its totient is φ = 59397120.

The previous prime is 228686281. The next prime is 228686317. The reversal of 228686304 is 403686822.

228686304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8077 + ... + 22860.

It is an arithmetic number, because the mean of its divisors is an integer number (7796376).

Almost surely, 2228686304 is an apocalyptic number.

228686304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228686304 is an abundant number, since it is smaller than the sum of its proper divisors (519765792).

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

228686304 is a wasteful number, since it uses less digits than its factorization.

228686304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30968 (or 30960 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 228686304 is about 15122.3775908420. The cubic root of 228686304 is about 611.5238297029.

The spelling of 228686304 in words is "two hundred twenty-eight million, six hundred eighty-six thousand, three hundred four".

Divisors: 1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 56 66 77 84 88 96 112 132 154 168 176 224 231 264 308 336 352 462 528 616 672 924 1056 1232 1848 2464 3696 7392 30937 61874 92811 123748 185622 216559 247496 340307 371244 433118 494992 649677 680614 742488 866236 989984 1020921 1299354 1361228 1484976 1732472 2041842 2382149 2598708 2722456 2969952 3464944 4083684 4764298 5197416 5444912 6929888 7146447 8167368 9528596 10394832 10889824 14292894 16334736 19057192 20789664 28585788 32669472 38114384 57171576 76228768 114343152 228686304