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20832392 = 237537019
BaseRepresentation
bin100111101111…
…0000010001000
31110012101200002
41033132002020
520313114032
62022302132
7342033560
oct117360210
943171602
1020832392
1110839759
126b87948
134415279
142aa3da0
151c67862
hex13de088

20832392 has 32 divisors (see below), whose sum is σ = 45489600. Its totient is φ = 8758464.

The previous prime is 20832391. The next prime is 20832397. The reversal of 20832392 is 29323802.

It is not an unprimeable number, because it can be changed into a prime (20832391) 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 7 ways as a sum of consecutive naturals, for example, 542 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (1421550).

Almost surely, 220832392 is an apocalyptic number.

It is an amenable number.

20832392 is an abundant number, since it is smaller than the sum of its proper divisors (24657208).

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

20832392 is a wasteful number, since it uses less digits than its factorization.

20832392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085 (or 7081 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 20832392 is about 4564.2515268114. The cubic root of 20832392 is about 275.1564597266.

The spelling of 20832392 in words is "twenty million, eight hundred thirty-two thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 14 28 53 56 106 212 371 424 742 1484 2968 7019 14038 28076 49133 56152 98266 196532 372007 393064 744014 1488028 2604049 2976056 5208098 10416196 20832392