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20826232 = 237371897
BaseRepresentation
bin100111101110…
…0100001111000
31110012002012221
41033130201320
520312414412
62022213424
7342006610
oct117344170
943162187
1020826232
1110835069
126b84274
13441251b
142aa1a40
151c65b07
hex13dc878

20826232 has 16 divisors (see below), whose sum is σ = 44627760. Its totient is φ = 8925504.

The previous prime is 20826209. The next prime is 20826251. The reversal of 20826232 is 23262802.

It is a junction number, because it is equal to n+sod(n) for n = 20826197 and 20826206.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 185893 + ... + 186004.

It is an arithmetic number, because the mean of its divisors is an integer number (2789235).

Almost surely, 220826232 is an apocalyptic number.

It is an amenable number.

20826232 is an abundant number, since it is smaller than the sum of its proper divisors (23801528).

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

20826232 is a wasteful number, since it uses less digits than its factorization.

20826232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371910 (or 371906 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20826232 is about 4563.5766674835. The cubic root of 20826232 is about 275.1293364069.

The spelling of 20826232 in words is "twenty million, eight hundred twenty-six thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 56 371897 743794 1487588 2603279 2975176 5206558 10413116 20826232