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20051327 = 193159577
BaseRepresentation
bin100110001111…
…1010101111111
31101201201020202
41030133111333
520113120302
61553434115
7332301452
oct114372577
941651222
1020051327
111035594a
12686b93b
1342008ba
14293d499
151b61202
hex131f57f

20051327 has 16 divisors (see below), whose sum is σ = 22195200. Its totient is φ = 18040320.

The previous prime is 20051309. The next prime is 20051329. The reversal of 20051327 is 72315002.

It is a cyclic number.

It is not a de Polignac number, because 20051327 - 26 = 20051263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20051299 and 20051308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34463 + ... + 35039.

It is an arithmetic number, because the mean of its divisors is an integer number (1387200).

Almost surely, 220051327 is an apocalyptic number.

20051327 is a deficient number, since it is larger than the sum of its proper divisors (2143873).

20051327 is a wasteful number, since it uses less digits than its factorization.

20051327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 20051327 is about 4477.8708109994. The cubic root of 20051327 is about 271.6737681576.

Adding to 20051327 its reverse (72315002), we get a palindrome (92366329).

The spelling of 20051327 in words is "twenty million, fifty-one thousand, three hundred twenty-seven".

Divisors: 1 19 31 59 577 589 1121 1829 10963 17887 34043 34751 339853 646817 1055333 20051327