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51086518480054 = 2315300315545839
BaseRepresentation
bin10111001110110100000011…
…10010010110110010110110
320200212211020022100212020001
423213122001302112302312
523144000142212330204
6300352453403101514
713521610360212601
oct1347320162266266
9220784208325201
1051086518480054
111530674194a662
125890aab81189a
132267590444ac5
14c8885a401338
155d8d26c964a4
hex2e7681c96cb6

51086518480054 has 16 divisors (see below), whose sum is σ = 79103203522560. Its totient is φ = 24718815170280.

The previous prime is 51086518480027. The next prime is 51086518480061. The reversal of 51086518480054 is 45008481568015.

It is a junction number, because it is equal to n+sod(n) for n = 51086518479977 and 51086518480004.

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, 4486734 + ... + 11059105.

It is an arithmetic number, because the mean of its divisors is an integer number (4943950220160).

Almost surely, 251086518480054 is an apocalyptic number.

51086518480054 is a deficient number, since it is larger than the sum of its proper divisors (28016685042506).

51086518480054 is a wasteful number, since it uses less digits than its factorization.

51086518480054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15598875.

The product of its (nonzero) digits is 6144000, while the sum is 55.

The spelling of 51086518480054 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, fifty-four".

Divisors: 1 2 31 62 53003 106006 1643093 3286186 15545839 31091678 481921009 963842018 823976104517 1647952209034 25543259240027 51086518480054