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51086518480053 = 347297871315151
BaseRepresentation
bin10111001110110100000011…
…10010010110110010110101
320200212211020022100212020000
423213122001302112302311
523144000142212330203
6300352453403101513
713521610360212600
oct1347320162266265
9220784208325200
1051086518480053
111530674194a661
125890aab811899
132267590444ac4
14c8885a401337
155d8d26c964a3
hex2e7681c96cb5

51086518480053 has 60 divisors (see below), whose sum is σ = 88783065531072. Its totient is φ = 29189291317200.

The previous prime is 51086518480027. The next prime is 51086518480061. The reversal of 51086518480053 is 35008481568015.

51086518480053 is a `hidden beast` number, since 5 + 1 + 0 + 86 + 518 + 48 + 0 + 0 + 5 + 3 = 666.

It is not a de Polignac number, because 51086518480053 - 25 = 51086518480021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51086518480253) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 38187028 + ... + 39502178.

Almost surely, 251086518480053 is an apocalyptic number.

It is an amenable number.

51086518480053 is a deficient number, since it is larger than the sum of its proper divisors (37696547051019).

51086518480053 is a wasteful number, since it uses less digits than its factorization.

51086518480053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324964 (or 1324948 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 51086518480053 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, fifty-three".

Divisors: 1 3 7 9 21 27 49 63 81 147 189 441 567 1323 3969 9787 29361 68509 88083 205527 264249 479563 616581 792747 1315151 1438689 1849743 3945453 4316067 5549229 9206057 11836359 12948201 27618171 35509077 38844603 64442399 82854513 106527231 193327197 248563539 579981591 745690617 1739944773 5219834319 12871382837 38614148511 90099679859 115842445533 270299039577 347527336599 630697759013 810897118731 1042582009797 1892093277039 2432691356193 5676279831117 7298074068579 17028839493351 51086518480053