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288026868 = 223163147253
BaseRepresentation
bin10001001010101…
…111000011110100
3202001222021120210
4101022233003310
51042213324433
644325225420
710065121323
oct2112570364
9661867523
10288026868
11138646938
1280562270
13478980cc
142a3780ba
151a446463
hex112af0f4

288026868 has 24 divisors (see below), whose sum is σ = 676190368. Its totient is φ = 95419296.

The previous prime is 288026867. The next prime is 288026887. The reversal of 288026868 is 868620882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288026867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71671 + ... + 75582.

Almost surely, 2288026868 is an apocalyptic number.

It is an amenable number.

288026868 is an abundant number, since it is smaller than the sum of its proper divisors (388163500).

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

288026868 is a wasteful number, since it uses less digits than its factorization.

288026868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147423 (or 147421 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 288026868 is about 16971.3543360570. The cubic root of 288026868 is about 660.4059852934.

The spelling of 288026868 in words is "two hundred eighty-eight million, twenty-six thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 163 326 489 652 978 1956 147253 294506 441759 589012 883518 1767036 24002239 48004478 72006717 96008956 144013434 288026868