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28960286 = 282917467
BaseRepresentation
bin110111001111…
…0011000011110
32000111100001012
41232132120132
524403212121
62512415222
7501105215
oct156363036
960440035
1028960286
1115390323
129847512
135ccc984
143bbc07c
152820c5b
hex1b9e61e

28960286 has 8 divisors (see below), whose sum is σ = 43495320. Its totient is φ = 14461848.

The previous prime is 28960249. The next prime is 28960297. The reversal of 28960286 is 68206982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7076 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (5436915).

Almost surely, 228960286 is an apocalyptic number.

28960286 is a deficient number, since it is larger than the sum of its proper divisors (14535034).

28960286 is a wasteful number, since it uses less digits than its factorization.

28960286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18298.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 28960286 is about 5381.4761915296. The cubic root of 28960286 is about 307.0913725340.

The spelling of 28960286 in words is "twenty-eight million, nine hundred sixty thousand, two hundred eighty-six".

Divisors: 1 2 829 1658 17467 34934 14480143 28960286