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22213404342 = 2322116358313
BaseRepresentation
bin10100101100000001…
…011010011010110110
32010100002102212012100
4110230001122122312
5330443112414332
614112114202530
71414316551533
oct245401323266
963302385170
1022213404342
119469984508
12437b283446
13213012054c
14110a251d8a
158a023467c
hex52c05a6b6

22213404342 has 24 divisors (see below), whose sum is σ = 48132142344. Its totient is φ = 7403991264.

The previous prime is 22213404319. The next prime is 22213404379. The reversal of 22213404342 is 24340431222.

22213404342 is a `hidden beast` number, since 2 + 2 + 213 + 404 + 3 + 42 = 666.

It is a super-2 number, since 2×222134043422 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351778 + ... + 410090.

It is an arithmetic number, because the mean of its divisors is an integer number (2005505931).

Almost surely, 222213404342 is an apocalyptic number.

22213404342 is an abundant number, since it is smaller than the sum of its proper divisors (25918738002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22213404342 is a wasteful number, since it uses less digits than its factorization.

22213404342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79484 (or 79481 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22213404342 its reverse (24340431222), we get a palindrome (46553835564).

The spelling of 22213404342 in words is "twenty-two billion, two hundred thirteen million, four hundred four thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 21163 42326 58313 63489 116626 126978 174939 190467 349878 380934 524817 1049634 1234078019 2468156038 3702234057 7404468114 11106702171 22213404342