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28056166 = 229483727
BaseRepresentation
bin110101100000…
…1101001100110
31221210101211021
41223001221212
524140244131
62441201354
7460321255
oct153015146
957711737
1028056166
1114923016
12949025a
135a742a8
143a2479c
1526e2e11
hex1ac1a66

28056166 has 8 divisors (see below), whose sum is σ = 43535520. Its totient is φ = 13544328.

The previous prime is 28056143. The next prime is 28056187. The reversal of 28056166 is 66165082.

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, 241806 + ... + 241921.

It is an arithmetic number, because the mean of its divisors is an integer number (5441940).

Almost surely, 228056166 is an apocalyptic number.

28056166 is a deficient number, since it is larger than the sum of its proper divisors (15479354).

28056166 is a wasteful number, since it uses less digits than its factorization.

28056166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483758.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 28056166 is about 5296.8071514829. The cubic root of 28056166 is about 303.8618009305.

The spelling of 28056166 in words is "twenty-eight million, fifty-six thousand, one hundred sixty-six".

Divisors: 1 2 29 58 483727 967454 14028083 28056166