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20224424213 = 72889203459
BaseRepresentation
bin10010110101011110…
…000011100100010101
31221012110211012101122
4102311132003210111
5312404423033323
613142503333325
71314115524620
oct226536034425
957173735348
1020224424213
118639184284
123b05151245
131ba4034026
14d9c024db7
157d57ebec8
hex4b5783915

20224424213 has 4 divisors (see below), whose sum is σ = 23113627680. Its totient is φ = 17335220748.

The previous prime is 20224424197. The next prime is 20224424249. The reversal of 20224424213 is 31242442202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20224424213 - 24 = 20224424197 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 (20224420213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444601723 + ... + 1444601736.

It is an arithmetic number, because the mean of its divisors is an integer number (5778406920).

Almost surely, 220224424213 is an apocalyptic number.

It is an amenable number.

20224424213 is a deficient number, since it is larger than the sum of its proper divisors (2889203467).

20224424213 is an equidigital number, since it uses as much as digits as its factorization.

20224424213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889203466.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20224424213 its reverse (31242442202), we get a palindrome (51466866415).

The spelling of 20224424213 in words is "twenty billion, two hundred twenty-four million, four hundred twenty-four thousand, two hundred thirteen".

Divisors: 1 7 2889203459 20224424213