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55688547470922 = 232151147411389919
BaseRepresentation
bin11001010100110000000000…
…00101110000111001001010
321022011202212121211000212100
430222120000011300321022
524244400121123032142
6314234544315454230
714505236056212222
oct1452300005607112
9238152777730770
1055688547470922
1116820420282683
1262b4991a57376
13250c53b355942
14da74a9269082
156688c0cabb4c
hex32a600170e4a

55688547470922 has 48 divisors (see below), whose sum is σ = 121465909393920. Its totient is φ = 18438652188000.

The previous prime is 55688547470921. The next prime is 55688547471001. The reversal of 55688547470922 is 22907474588655.

55688547470922 is a `hidden beast` number, since 5 + 5 + 6 + 8 + 8 + 547 + 4 + 70 + 9 + 2 + 2 = 666.

It is a super-2 number, since 2×556885474709222 (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55688547470921) 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 23 ways as a sum of consecutive naturals, for example, 39371079 + ... + 40760997.

It is an arithmetic number, because the mean of its divisors is an integer number (2530539779040).

Almost surely, 255688547470922 is an apocalyptic number.

55688547470922 is an abundant number, since it is smaller than the sum of its proper divisors (65777361922998).

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

55688547470922 is a wasteful number, since it uses less digits than its factorization.

55688547470922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404819 (or 1404816 counting only the distinct ones).

The product of its (nonzero) digits is 1354752000, while the sum is 72.

The spelling of 55688547470922 in words is "fifty-five trillion, six hundred eighty-eight billion, five hundred forty-seven million, four hundred seventy thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 9 18 151 302 453 906 1359 2718 14741 29482 44223 88446 132669 265338 1389919 2225891 2779838 4169757 4451782 6677673 8339514 12509271 13355346 20033019 25018542 40066038 209877769 419755538 629633307 1259266614 1888899921 3777799842 20488795979 40977591958 61466387937 122932775874 184399163811 368798327622 3093808192829 6187616385658 9281424578487 18562849156974 27844273735461 55688547470922