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28916206 = 2116312083
BaseRepresentation
bin110111001001…
…1100111101110
32000102002120121
41232103213232
524400304311
62511435154
7500532544
oct156234756
960362517
1028916206
11153601a0
129825aba
135cb58a7
143ba9d94
152812b71
hex1b939ee

28916206 has 16 divisors (see below), whose sum is σ = 47415168. Its totient is φ = 13116600.

The previous prime is 28916191. The next prime is 28916213. The reversal of 28916206 is 60261982.

It is a happy number.

It is a super-2 number, since 2×289162062 = 1672293938868872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12841 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (2963448).

Almost surely, 228916206 is an apocalyptic number.

28916206 is a deficient number, since it is larger than the sum of its proper divisors (18498962).

28916206 is a wasteful number, since it uses less digits than its factorization.

28916206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 28916206 is about 5377.3791013839. The cubic root of 28916206 is about 306.9354870861.

The spelling of 28916206 in words is "twenty-eight million, nine hundred sixteen thousand, two hundred six".

Divisors: 1 2 11 22 631 1262 2083 4166 6941 13882 22913 45826 1314373 2628746 14458103 28916206