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28326894 = 234721149
BaseRepresentation
bin110110000001…
…1101111101110
31222022011012020
41230003233232
524222430034
62451051010
7462526461
oct154035756
958264166
1028326894
1114a98462
1295a0a66
135b3a59b
143a952d8
152748249
hex1b03bee

28326894 has 8 divisors (see below), whose sum is σ = 56653800. Its totient is φ = 9442296.

The previous prime is 28326889. The next prime is 28326911. The reversal of 28326894 is 49862382.

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

28326894 is an admirable number.

It is a Curzon number.

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, 2360569 + ... + 2360580.

It is an arithmetic number, because the mean of its divisors is an integer number (7081725).

Almost surely, 228326894 is an apocalyptic number.

28326894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28326894 is a wasteful number, since it uses less digits than its factorization.

28326894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721154.

The product of its digits is 165888, while the sum is 42.

The square root of 28326894 is about 5322.3015698098. The cubic root of 28326894 is about 304.8360455370.

The spelling of 28326894 in words is "twenty-eight million, three hundred twenty-six thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 4721149 9442298 14163447 28326894