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20424011101 = 1313711467721
BaseRepresentation
bin10011000001010111…
…011010110101011101
31221201101101021010121
4103001113122311131
5313312021323401
613214353234541
71322061141604
oct230127326535
957641337117
1020424011101
11873090491a
123b5bb62a51
131c064a5290
14dba73aa3b
157e80c3ca1
hex4c15dad5d

20424011101 has 8 divisors (see below), whose sum is σ = 22155638904. Its totient is φ = 18715319040.

The previous prime is 20424011057. The next prime is 20424011117. The reversal of 20424011101 is 10111042402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 342287001 + 20081724100 = 18501^2 + 141710^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20424011101 - 27 = 20424010973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424011401) 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, 5732080 + ... + 5735641.

It is an arithmetic number, because the mean of its divisors is an integer number (2769454863).

Almost surely, 220424011101 is an apocalyptic number.

It is an amenable number.

20424011101 is a deficient number, since it is larger than the sum of its proper divisors (1731627803).

20424011101 is a wasteful number, since it uses less digits than its factorization.

20424011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11467871.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20424011101 its reverse (10111042402), we get a palindrome (30535053503).

The spelling of 20424011101 in words is "twenty billion, four hundred twenty-four million, eleven thousand, one hundred one".

Divisors: 1 13 137 1781 11467721 149080373 1571077777 20424011101