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20541330046 = 2194079132523
BaseRepresentation
bin10011001000010110…
…111101001001111110
31222000120010200110201
4103020112331021332
5314032040030141
613234143554114
71325014265416
oct231026751176
958016120421
1020541330046
118791055326
123b932bb93a
131c248a0a83
14dcc159646
1580354a031
hex4c85bd27e

20541330046 has 16 divisors (see below), whose sum is σ = 32441875200. Its totient is φ = 9727644888.

The previous prime is 20541330041. The next prime is 20541330053. The reversal of 20541330046 is 64003314502.

It is a junction number, because it is equal to n+sod(n) for n = 20541329996 and 20541330023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541330041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88741 + ... + 221263.

It is an arithmetic number, because the mean of its divisors is an integer number (2027617200).

Almost surely, 220541330046 is an apocalyptic number.

20541330046 is a deficient number, since it is larger than the sum of its proper divisors (11900545154).

20541330046 is a wasteful number, since it uses less digits than its factorization.

20541330046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136623.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 20541330046 its reverse (64003314502), we get a palindrome (84544644548).

The spelling of 20541330046 in words is "twenty billion, five hundred forty-one million, three hundred thirty thousand, forty-six".

Divisors: 1 2 19 38 4079 8158 77501 132523 155002 265046 2517937 5035874 540561317 1081122634 10270665023 20541330046