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20589252 = 2231715771
BaseRepresentation
bin100111010001…
…0101011000100
31102202001010220
41032202223010
520232324002
62013144340
7340001655
oct116425304
942661126
1020589252
1110693012
126a8b0b0
13435b6b8
142a3d52c
151c1a7bc
hex13a2ac4

20589252 has 12 divisors (see below), whose sum is σ = 48041616. Its totient is φ = 6863080.

The previous prime is 20589251. The next prime is 20589253. The reversal of 20589252 is 25298502.

It is an interprime number because it is at equal distance from previous prime (20589251) and next prime (20589253).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20589251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857874 + ... + 857897.

It is an arithmetic number, because the mean of its divisors is an integer number (4003468).

Almost surely, 220589252 is an apocalyptic number.

It is an amenable number.

20589252 is an abundant number, since it is smaller than the sum of its proper divisors (27452364).

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

20589252 is a wasteful number, since it uses less digits than its factorization.

20589252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715778 (or 1715776 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 20589252 is about 4537.5380990136. The cubic root of 20589252 is about 274.0817948920.

The spelling of 20589252 in words is "twenty million, five hundred eighty-nine thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 1715771 3431542 5147313 6863084 10294626 20589252