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20541235676 = 2213521758203
BaseRepresentation
bin10011001000010110…
…100110000111011100
31222000112221220000112
4103020112212013130
5314032024020201
613234141545152
71325013423323
oct231026460734
958015856015
1020541235676
118790aa0435
123b932751b8
131c24869b30
14dcc1330ba
1580352c0bb
hex4c85a61dc

20541235676 has 24 divisors (see below), whose sum is σ = 38786683824. Its totient is φ = 9462360960.

The previous prime is 20541235657. The next prime is 20541235679. The reversal of 20541235676 is 67653214502.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541235679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352010 + ... + 406193.

It is an arithmetic number, because the mean of its divisors is an integer number (1616111826).

Almost surely, 220541235676 is an apocalyptic number.

20541235676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20541235676 is a deficient number, since it is larger than the sum of its proper divisors (18245448148).

20541235676 is a wasteful number, since it uses less digits than its factorization.

20541235676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758741 (or 758739 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 20541235676 in words is "twenty billion, five hundred forty-one million, two hundred thirty-five thousand, six hundred seventy-six".

Divisors: 1 2 4 13 26 52 521 1042 2084 6773 13546 27092 758203 1516406 3032812 9856639 19713278 39426556 395023763 790047526 1580095052 5135308919 10270617838 20541235676