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22312163642 = 2471045722699
BaseRepresentation
bin10100110001111010…
…001001100100111010
32010120222021100111012
4110301322021210322
5331143403214032
614130003033522
71416626155526
oct246172114472
963528240435
1022312163642
11950a6a886a
1243a836b8a2
13214771b3c2
1411193dcd86
158a8c416b2
hex531e8993a

22312163642 has 16 divisors (see below), whose sum is σ = 34185110400. Its totient is φ = 10917193248.

The previous prime is 22312163593. The next prime is 22312163651. The reversal of 22312163642 is 24636121322.

It is a super-3 number, since 3×223121636423 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22312163599 and 22312163608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 971609 + ... + 994307.

It is an arithmetic number, because the mean of its divisors is an integer number (2136569400).

Almost surely, 222312163642 is an apocalyptic number.

22312163642 is a deficient number, since it is larger than the sum of its proper divisors (11872946758).

22312163642 is a wasteful number, since it uses less digits than its factorization.

22312163642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33205.

The product of its digits is 20736, while the sum is 32.

Adding to 22312163642 its reverse (24636121322), we get a palindrome (46948284964).

The spelling of 22312163642 in words is "twenty-two billion, three hundred twelve million, one hundred sixty-three thousand, six hundred forty-two".

Divisors: 1 2 47 94 10457 20914 22699 45398 491479 982958 1066853 2133706 237363443 474726886 11156081821 22312163642