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22221230313 = 37407076771
BaseRepresentation
bin10100101100011111…
…010001000011101001
32010100122011110102010
4110230133101003221
5331002113332223
614112554030133
71414443225012
oct245437210351
963318143363
1022221230313
11947333a257
124381a18349
1321319306b9
14110b2cc009
158a0c7d393
hex52c7d10e9

22221230313 has 4 divisors (see below), whose sum is σ = 29628307088. Its totient is φ = 14814153540.

The previous prime is 22221230293. The next prime is 22221230321. The reversal of 22221230313 is 31303212222.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2k-22221230313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221230313.

It is not an unprimeable number, because it can be changed into a prime (22221230323) 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, 3703538383 + ... + 3703538388.

It is an arithmetic number, because the mean of its divisors is an integer number (7407076772).

Almost surely, 222221230313 is an apocalyptic number.

It is an amenable number.

22221230313 is a deficient number, since it is larger than the sum of its proper divisors (7407076775).

22221230313 is an equidigital number, since it uses as much as digits as its factorization.

22221230313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407076774.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22221230313 its reverse (31303212222), we get a palindrome (53524442535).

The spelling of 22221230313 in words is "twenty-two billion, two hundred twenty-one million, two hundred thirty thousand, three hundred thirteen".

Divisors: 1 3 7407076771 22221230313