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12104793053621 = 1717926471502801
BaseRepresentation
bin1011000000100101110111…
…1000111101100110110101
31120212012120211200210112122
42300021131320331212311
53041311104010203441
641424510512525325
72356354025200202
oct260113570754665
946765524623478
1012104793053621
113947683120044
121435ba6850845
1369a628210c18
142dbc37430ca9
1515ed17d3434b
hexb025de3d9b5

12104793053621 has 16 divisors (see below), whose sum is σ = 12893319815040. Its totient is φ = 11324812262400.

The previous prime is 12104793053597. The next prime is 12104793053623. The reversal of 12104793053621 is 12635039740121.

It is a happy number.

It is not a de Polignac number, because 12104793053621 - 226 = 12104725944757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104793053623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7303421 + ... + 8806221.

It is an arithmetic number, because the mean of its divisors is an integer number (805832488440).

Almost surely, 212104793053621 is an apocalyptic number.

It is an amenable number.

12104793053621 is a deficient number, since it is larger than the sum of its proper divisors (788526761419).

12104793053621 is a wasteful number, since it uses less digits than its factorization.

12104793053621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505644.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 12104793053621 in words is "twelve trillion, one hundred four billion, seven hundred ninety-three million, fifty-three thousand, six hundred twenty-one".

Divisors: 1 17 179 2647 3043 44999 473813 1502801 8054821 25547617 269001379 3977914247 4573023443 67624542199 712046650213 12104793053621