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20836088 = 2371328621
BaseRepresentation
bin100111101111…
…0111011111000
31110012120201222
41033132323320
520313223323
62022331212
7342050420
oct117367370
943176658
1020836088
1110841509
126b89b08
134416b60
142aa5480
151c689c8
hex13deef8

20836088 has 32 divisors (see below), whose sum is σ = 48084960. Its totient is φ = 8242560.

The previous prime is 20836073. The next prime is 20836111. The reversal of 20836088 is 88063802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13583 + ... + 15038.

It is an arithmetic number, because the mean of its divisors is an integer number (1502655).

Almost surely, 220836088 is an apocalyptic number.

20836088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20836088 is an abundant number, since it is smaller than the sum of its proper divisors (27248872).

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

20836088 is a wasteful number, since it uses less digits than its factorization.

20836088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28647 (or 28643 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 20836088 is about 4564.6563945165. The cubic root of 20836088 is about 275.1727311520.

The spelling of 20836088 in words is "twenty million, eight hundred thirty-six thousand, eighty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 28621 57242 114484 200347 228968 372073 400694 744146 801388 1488292 1602776 2604511 2976584 5209022 10418044 20836088