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287472064 = 2611408341
BaseRepresentation
bin10001001000100…
…111100111000000
3202000221002112111
4101020213213000
51042043101224
644305305104
710060320655
oct2110474700
9660832474
10287472064
111382a8020
1280335194
1347732719
142a271c2c
151a386d94
hex112279c0

287472064 has 28 divisors (see below), whose sum is σ = 622313208. Its totient is φ = 130668800.

The previous prime is 287472061. The next prime is 287472079. The reversal of 287472064 is 460274782.

287472064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287472061) 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, 203467 + ... + 204874.

Almost surely, 2287472064 is an apocalyptic number.

It is an amenable number.

287472064 is an abundant number, since it is smaller than the sum of its proper divisors (334841144).

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

287472064 is a wasteful number, since it uses less digits than its factorization.

287472064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408364 (or 408354 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 287472064 is about 16955.0011501032. The cubic root of 287472064 is about 659.9816829933.

The spelling of 287472064 in words is "two hundred eighty-seven million, four hundred seventy-two thousand, sixty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 408341 816682 1633364 3266728 4491751 6533456 8983502 13066912 17967004 26133824 35934008 71868016 143736032 287472064