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288949216 = 2553170371
BaseRepresentation
bin10001001110010…
…000001111100000
3202010201010210211
4101032100033200
51042432333331
644401103504
710106012353
oct2116201740
9663633724
10288949216
11139116906
1280927b94
1347b2bb8a
142a53829a
151a5798b1
hex113903e0

288949216 has 24 divisors (see below), whose sum is σ = 579605544. Its totient is φ = 141747840.

The previous prime is 288949211. The next prime is 288949229. The reversal of 288949216 is 612949882.

It is a self number, because there is not a number n which added to its sum of digits gives 288949216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288949211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83490 + ... + 86881.

It is an arithmetic number, because the mean of its divisors is an integer number (24150231).

Almost surely, 2288949216 is an apocalyptic number.

It is an amenable number.

288949216 is an abundant number, since it is smaller than the sum of its proper divisors (290656328).

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

288949216 is a wasteful number, since it uses less digits than its factorization.

288949216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170434 (or 170426 counting only the distinct ones).

The product of its digits is 497664, while the sum is 49.

The square root of 288949216 is about 16998.5062873183. The cubic root of 288949216 is about 661.1101731806.

The spelling of 288949216 in words is "two hundred eighty-eight million, nine hundred forty-nine thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 170371 340742 681484 1362968 2725936 5451872 9029663 18059326 36118652 72237304 144474608 288949216