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26105768 = 2313219309
BaseRepresentation
bin110001110010…
…1011110101000
31211010022101022
41203211132220
523140341033
62331312012
7434616053
oct143453650
954108338
1026105768
1113810717
1288ab608
135540600
143677a9a
15245a098
hex18e57a8

26105768 has 24 divisors (see below), whose sum is σ = 53005950. Its totient is φ = 12048192.

The previous prime is 26105719. The next prime is 26105801. The reversal of 26105768 is 86750162.

It can be written as a sum of positive squares in 3 ways, for example, as 7941124 + 18164644 = 2818^2 + 4262^2 .

It is a super-2 number, since 2×261057682 = 1363022245739648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8303 + ... + 11006.

Almost surely, 226105768 is an apocalyptic number.

It is an amenable number.

26105768 is an abundant number, since it is smaller than the sum of its proper divisors (26900182).

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

26105768 is a wasteful number, since it uses less digits than its factorization.

26105768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19341 (or 19324 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 26105768 is about 5109.3803929635. The cubic root of 26105768 is about 296.6507778105.

The spelling of 26105768 in words is "twenty-six million, one hundred five thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 169 338 676 1352 19309 38618 77236 154472 251017 502034 1004068 2008136 3263221 6526442 13052884 26105768