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20244224311 = 83243906317
BaseRepresentation
bin10010110110101001…
…100101100100110111
31221020212002011000121
4102312221211210313
5312430010134221
613144451552411
71314446032063
oct226651454467
957225064017
1020244224311
1186493783a3
123b0b8bb707
131ba817746c
14da08daaa3
157d740da41
hex4b6a65937

20244224311 has 4 divisors (see below), whose sum is σ = 20488130712. Its totient is φ = 20000317912.

The previous prime is 20244224309. The next prime is 20244224333. The reversal of 20244224311 is 11342244202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11342244202 = 25671122101.

It is a cyclic number.

It is not a de Polignac number, because 20244224311 - 21 = 20244224309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247224311) 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 3 ways as a sum of consecutive naturals, for example, 121953076 + ... + 121953241.

It is an arithmetic number, because the mean of its divisors is an integer number (5122032678).

Almost surely, 220244224311 is an apocalyptic number.

20244224311 is a deficient number, since it is larger than the sum of its proper divisors (243906401).

20244224311 is an equidigital number, since it uses as much as digits as its factorization.

20244224311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243906400.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20244224311 its reverse (11342244202), we get a palindrome (31586468513).

The spelling of 20244224311 in words is "twenty billion, two hundred forty-four million, two hundred twenty-four thousand, three hundred eleven".

Divisors: 1 83 243906317 20244224311