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20328050 = 252406561
BaseRepresentation
bin100110110001…
…0111001110010
31102020202211202
41031202321302
520200444200
62003411202
7334533311
oct115427162
942222752
1020328050
1110524846
126983b02
134299842
1429b2278
151bb81d5
hex1362e72

20328050 has 12 divisors (see below), whose sum is σ = 37810266. Its totient is φ = 8131200.

The previous prime is 20328041. The next prime is 20328053. The reversal of 20328050 is 5082302.

It can be written as a sum of positive squares in 3 ways, for example, as 10699441 + 9628609 = 3271^2 + 3103^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20328053) 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 5 ways as a sum of consecutive naturals, for example, 203231 + ... + 203330.

Almost surely, 220328050 is an apocalyptic number.

20328050 is a deficient number, since it is larger than the sum of its proper divisors (17482216).

20328050 is a wasteful number, since it uses less digits than its factorization.

20328050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406573 (or 406568 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20328050 is about 4508.6638819056. The cubic root of 20328050 is about 272.9178282749.

The spelling of 20328050 in words is "twenty million, three hundred twenty-eight thousand, fifty".

Divisors: 1 2 5 10 25 50 406561 813122 2032805 4065610 10164025 20328050