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20541204430 = 252054120443
BaseRepresentation
bin10011001000010110…
…011110011111001110
31222000112220022011021
4103020112132133032
5314032022020210
613234141144354
71325013233245
oct231026363716
958015808137
1020541204430
118790a79a0a
123b9325b0ba
131c24858846
14dcc12595c
15803522bda
hex4c859e7ce

20541204430 has 8 divisors (see below), whose sum is σ = 36974167992. Its totient is φ = 8216481768.

The previous prime is 20541204379. The next prime is 20541204451. The reversal of 20541204430 is 3440214502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20541204395 and 20541204404.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1027060212 + ... + 1027060231.

It is an arithmetic number, because the mean of its divisors is an integer number (4621770999).

Almost surely, 220541204430 is an apocalyptic number.

20541204430 is a deficient number, since it is larger than the sum of its proper divisors (16432963562).

20541204430 is a wasteful number, since it uses less digits than its factorization.

20541204430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054120450.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20541204430 its reverse (3440214502), we get a palindrome (23981418932).

The spelling of 20541204430 in words is "twenty billion, five hundred forty-one million, two hundred four thousand, four hundred thirty".

Divisors: 1 2 5 10 2054120443 4108240886 10270602215 20541204430