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28826266 = 279721227
BaseRepresentation
bin110110111110…
…1101010011010
32000020112012111
41231331222122
524334420031
62505502534
7500006410
oct155755232
960215174
1028826266
11152a9667
1297a1a4a
135c83981
143b852b0
1527e61b1
hex1b7da9a

28826266 has 16 divisors (see below), whose sum is σ = 49928256. Its totient is φ = 12226176.

The previous prime is 28826263. The next prime is 28826267. The reversal of 28826266 is 66262882.

It is a super-2 number, since 2×288262662 = 1661907223005512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28826263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9256 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (3120516).

Almost surely, 228826266 is an apocalyptic number.

28826266 is a deficient number, since it is larger than the sum of its proper divisors (21101990).

28826266 is a wasteful number, since it uses less digits than its factorization.

28826266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21333.

The product of its digits is 110592, while the sum is 40.

The square root of 28826266 is about 5369.0097783483. The cubic root of 28826266 is about 306.6169292893.

It can be divided in two parts, 28826 and 266, that added together give a palindrome (29092).

The spelling of 28826266 in words is "twenty-eight million, eight hundred twenty-six thousand, two hundred sixty-six".

Divisors: 1 2 7 14 97 194 679 1358 21227 42454 148589 297178 2059019 4118038 14413133 28826266