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20050568 = 232506321
BaseRepresentation
bin100110001111…
…1001010001000
31101201200012122
41030133022020
520113104233
61553430412
7332266316
oct114371210
941650178
1020050568
111035531a
12686b408
134200455
14293d0b6
151b60d98
hex131f288

20050568 has 8 divisors (see below), whose sum is σ = 37594830. Its totient is φ = 10025280.

The previous prime is 20050561. The next prime is 20050573. The reversal of 20050568 is 86505002.

It can be written as a sum of positive squares in only one way, i.e., 17623204 + 2427364 = 4198^2 + 1558^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20050561) 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 as a sum of consecutive naturals, namely, 1253153 + ... + 1253168.

Almost surely, 220050568 is an apocalyptic number.

It is an amenable number.

20050568 is a deficient number, since it is larger than the sum of its proper divisors (17544262).

20050568 is a wasteful number, since it uses less digits than its factorization.

20050568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506327 (or 2506323 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 20050568 is about 4477.7860600971. The cubic root of 20050568 is about 271.6703402383.

The spelling of 20050568 in words is "twenty million, fifty thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 2506321 5012642 10025284 20050568