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288086664 = 23319241811
BaseRepresentation
bin10001001010111…
…101101010001000
3202002002022121110
4101022331222020
51042222233124
644330410320
710065460545
oct2112755210
9662068543
10288086664
11138687858
12805909a0
13478b93a8
142a391bcc
151a459029
hex112bda88

288086664 has 96 divisors (see below), whose sum is σ = 779617440. Its totient is φ = 88646400.

The previous prime is 288086663. The next prime is 288086719. The reversal of 288086664 is 466680882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (288086663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354819 + ... + 355629.

It is an arithmetic number, because the mean of its divisors is an integer number (8121015).

Almost surely, 2288086664 is an apocalyptic number.

288086664 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 288086664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389808720).

288086664 is an abundant number, since it is smaller than the sum of its proper divisors (491530776).

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

288086664 is a wasteful number, since it uses less digits than its factorization.

288086664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 288086664 is about 16973.1159190056. The cubic root of 288086664 is about 660.4516834652.

The spelling of 288086664 in words is "two hundred eighty-eight million, eighty-six thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 19 24 38 41 57 76 82 114 123 152 164 228 246 328 361 456 492 722 779 811 984 1083 1444 1558 1622 2166 2337 2433 2888 3116 3244 4332 4674 4866 6232 6488 8664 9348 9732 14801 15409 18696 19464 29602 30818 33251 44403 46227 59204 61636 66502 88806 92454 99753 118408 123272 133004 177612 184908 199506 266008 292771 355224 369816 399012 585542 631769 798024 878313 1171084 1263538 1756626 1895307 2342168 2527076 3513252 3790614 5054152 7026504 7581228 12003611 15162456 24007222 36010833 48014444 72021666 96028888 144043332 288086664