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20432982 = 2314512347
BaseRepresentation
bin100110111110…
…0100001010110
31102110002210010
41031330201112
520212323412
62005541050
7335451243
oct115744126
942402703
1020432982
1110596669
126a14786
13430552b
1429dc5ca
151bd933c
hex137c856

20432982 has 16 divisors (see below), whose sum is σ = 40911552. Its totient is φ = 6803400.

The previous prime is 20432981. The next prime is 20433013. The reversal of 20432982 is 28923402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7533 + ... + 9879.

It is an arithmetic number, because the mean of its divisors is an integer number (2556972).

Almost surely, 220432982 is an apocalyptic number.

20432982 is an abundant number, since it is smaller than the sum of its proper divisors (20478570).

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

20432982 is a wasteful number, since it uses less digits than its factorization.

20432982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20432982 is about 4520.2856104454. The cubic root of 20432982 is about 273.3866169504.

The spelling of 20432982 in words is "twenty million, four hundred thirty-two thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 1451 2347 2902 4353 4694 7041 8706 14082 3405497 6810994 10216491 20432982