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51343667258140 = 22514917229418543
BaseRepresentation
bin10111010110010011000010…
…00011000110001100011100
320201210101222110011021022001
423223021201003012030130
523212203312304230030
6301110542145532044
713546312636602145
oct1353114103061434
9221711873137261
1051343667258140
11153a57aa705674
1259128b6344024
1322858c159b5aa
14c9709241aacc
155e08774b6cca
hex2eb2610c631c

51343667258140 has 24 divisors (see below), whose sum is σ = 108545336827200. Its totient is φ = 20399631553728.

The previous prime is 51343667258131. The next prime is 51343667258201. The reversal of 51343667258140 is 4185276634315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8614706292 + ... + 8614712251.

It is an arithmetic number, because the mean of its divisors is an integer number (4522722367800).

Almost surely, 251343667258140 is an apocalyptic number.

It is an amenable number.

51343667258140 is an abundant number, since it is smaller than the sum of its proper divisors (57201669569060).

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

51343667258140 is a wasteful number, since it uses less digits than its factorization.

51343667258140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17229418701 (or 17229418699 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 51343667258140 in words is "fifty-one trillion, three hundred forty-three billion, six hundred sixty-seven million, two hundred fifty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 17229418543 34458837086 68917674172 86147092715 172294185430 344588370860 2567183362907 5134366725814 10268733451628 12835916814535 25671833629070 51343667258140