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28352826 = 2321982903
BaseRepresentation
bin110110000101…
…0000100111010
31222100110202200
41230022010322
524224242301
62451411030
7462665205
oct154120472
958313680
1028352826
1115005997
1295b3a76
135b49328
143aa093c
152750c86
hex1b0a13a

28352826 has 24 divisors (see below), whose sum is σ = 64665120. Its totient is φ = 8953416.

The previous prime is 28352801. The next prime is 28352839. The reversal of 28352826 is 62825382.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 41110 + ... + 41793.

It is an arithmetic number, because the mean of its divisors is an integer number (2694380).

Almost surely, 228352826 is an apocalyptic number.

28352826 is an abundant number, since it is smaller than the sum of its proper divisors (36312294).

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

28352826 is a wasteful number, since it uses less digits than its factorization.

28352826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82930 (or 82927 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 28352826 is about 5324.7371766126. The cubic root of 28352826 is about 304.9290384048.

The spelling of 28352826 in words is "twenty-eight million, three hundred fifty-two thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 82903 165806 248709 497418 746127 1492254 1575157 3150314 4725471 9450942 14176413 28352826