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288064380 = 22355878179
BaseRepresentation
bin10001001010111…
…000001101111100
3202002001012001010
4101022320031330
51042221030010
644330115220
710065335562
oct2112701574
9662035033
10288064380
1113867203a
128057bb10
13478ac1c6
142a387a32
151a452620
hex112b837c

288064380 has 48 divisors (see below), whose sum is σ = 808053120. Its totient is φ = 76676928.

The previous prime is 288064379. The next prime is 288064409. The reversal of 288064380 is 83460882.

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, 31131 + ... + 39309.

It is an arithmetic number, because the mean of its divisors is an integer number (16834440).

Almost surely, 2288064380 is an apocalyptic number.

288064380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288064380 is an abundant number, since it is smaller than the sum of its proper divisors (519988740).

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

288064380 is a wasteful number, since it uses less digits than its factorization.

288064380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8778 (or 8776 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 288064380 is about 16972.4594564253. The cubic root of 288064380 is about 660.4346540007.

The spelling of 288064380 in words is "two hundred eighty-eight million, sixty-four thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 587 1174 1761 2348 2935 3522 5870 7044 8179 8805 11740 16358 17610 24537 32716 35220 40895 49074 81790 98148 122685 163580 245370 490740 4801073 9602146 14403219 19204292 24005365 28806438 48010730 57612876 72016095 96021460 144032190 288064380