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288067985 = 52353151313
BaseRepresentation
bin10001001010111…
…001000110010001
3202002001100222122
4101022321012101
51042221133420
644330144025
710065352232
oct2112710621
9662040878
10288067985
11138674817
1280582015
13478b0a3a
142a389089
151a453725
hex112b9191

288067985 has 32 divisors (see below), whose sum is σ = 371132928. Its totient is φ = 214156800.

The previous prime is 288067973. The next prime is 288068057. The reversal of 288067985 is 589760882.

It is not a de Polignac number, because 288067985 - 26 = 288067921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 920189 + ... + 920501.

It is an arithmetic number, because the mean of its divisors is an integer number (11597904).

Almost surely, 2288067985 is an apocalyptic number.

It is an amenable number.

288067985 is a deficient number, since it is larger than the sum of its proper divisors (83064943).

288067985 is a wasteful number, since it uses less digits than its factorization.

288067985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 288067985 is about 16972.5656575545. The cubic root of 288067985 is about 660.4374090064.

The spelling of 288067985 in words is "two hundred eighty-eight million, sixty-seven thousand, nine hundred eighty-five".

Divisors: 1 5 23 53 115 151 265 313 755 1219 1565 3473 6095 7199 8003 16589 17365 35995 40015 47263 82945 184069 236315 381547 920345 1087049 1907735 2504939 5435245 12524695 57613597 288067985