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288055872 = 26331312823
BaseRepresentation
bin10001001010110…
…110001001000000
3202002000202101000
4101022312021000
51042220241442
644330012000
710065302016
oct2112661100
9662022330
10288055872
11138666705
1280577000
13478a8380
142a3848b6
151a44ed4c
hex112b6240

288055872 has 112 divisors (see below), whose sum is σ = 912042880. Its totient is φ = 88625664.

The previous prime is 288055853. The next prime is 288055879. The reversal of 288055872 is 278550882.

288055872 is a `hidden beast` number, since 28 + 8 + 0 + 558 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (288055879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16053 + ... + 28875.

It is an arithmetic number, because the mean of its divisors is an integer number (8143240).

Almost surely, 2288055872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288055872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456021440).

288055872 is an abundant number, since it is smaller than the sum of its proper divisors (623987008).

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

288055872 is a wasteful number, since it uses less digits than its factorization.

288055872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12857 (or 12841 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 288055872 is about 16972.2088132335. The cubic root of 288055872 is about 660.4281519434.

The spelling of 288055872 in words is "two hundred eighty-eight million, fifty-five thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 144 156 192 208 216 234 288 312 351 416 432 468 576 624 702 832 864 936 1248 1404 1728 1872 2496 2808 3744 5616 7488 11232 12823 22464 25646 38469 51292 76938 102584 115407 153876 166699 205168 230814 307752 333398 346221 410336 461628 500097 615504 666796 692442 820672 923256 1000194 1231008 1333592 1384884 1500291 1846512 2000388 2462016 2667184 2769768 3000582 3693024 4000776 4500873 5334368 5539536 6001164 7386048 8001552 9001746 10668736 11079072 12002328 16003104 18003492 22158144 24004656 32006208 36006984 48009312 72013968 96018624 144027936 288055872