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20324205 = 32511192161
BaseRepresentation
bin100110110000…
…1111101101101
31102020120120100
41031201331231
520200333310
62003341313
7334516146
oct115417555
942216510
1020324205
1110521970
126981839
134297b75
1429b0acd
151bb6ec0
hex1361f6d

20324205 has 48 divisors (see below), whose sum is σ = 40472640. Its totient is φ = 9331200.

The previous prime is 20324201. The next prime is 20324207. The reversal of 20324205 is 50242302.

It is not a de Polignac number, because 20324205 - 22 = 20324201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8325 + ... + 10485.

It is an arithmetic number, because the mean of its divisors is an integer number (843180).

Almost surely, 220324205 is an apocalyptic number.

It is an amenable number.

20324205 is a deficient number, since it is larger than the sum of its proper divisors (20148435).

20324205 is a wasteful number, since it uses less digits than its factorization.

20324205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20324205 is about 4508.2374604717. The cubic root of 20324205 is about 272.9006199476.

Adding to 20324205 its reverse (50242302), we get a palindrome (70566507).

The spelling of 20324205 in words is "twenty million, three hundred twenty-four thousand, two hundred five".

Divisors: 1 3 5 9 11 15 19 33 45 55 57 95 99 165 171 209 285 495 627 855 1045 1881 2161 3135 6483 9405 10805 19449 23771 32415 41059 71313 97245 118855 123177 205295 213939 356565 369531 451649 615885 1069695 1354947 1847655 2258245 4064841 6774735 20324205