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22020214420 = 2251636754667
BaseRepresentation
bin10100100000100000…
…011100111010010100
32002211121220210110001
4110200200130322110
5330044133330140
614041013341044
71406452506601
oct244040347224
962747823401
1022020214420
11937a923016
124326637784
1320cc0abb99
1410cc7236a8
1588d2c2e9a
hex52081ce94

22020214420 has 24 divisors (see below), whose sum is σ = 46526153184. Its totient is φ = 8754047136.

The previous prime is 22020214399. The next prime is 22020214423. The reversal of 22020214420 is 2441202022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020214423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3374074 + ... + 3380593.

It is an arithmetic number, because the mean of its divisors is an integer number (1938589716).

Almost surely, 222020214420 is an apocalyptic number.

22020214420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020214420 is an abundant number, since it is smaller than the sum of its proper divisors (24505938764).

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

22020214420 is a wasteful number, since it uses less digits than its factorization.

22020214420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754839 (or 6754837 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22020214420 its reverse (2441202022), we get a palindrome (24461416442).

The spelling of 22020214420 in words is "twenty-two billion, twenty million, two hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 3260 6754667 13509334 27018668 33773335 67546670 135093340 1101010721 2202021442 4404042884 5505053605 11010107210 22020214420