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42054623585 = 5132336776649
BaseRepresentation
bin100111001010101001…
…101010000101100001
311000112212012020012022
4213022221222011201
51142111440423320
631153012311225
73016103255012
oct471251520541
9130485166168
1042054623585
1116920814167
128198012515
133c72943670
14206d405009
151162089325
hex9caa6a161

42054623585 has 32 divisors (see below), whose sum is σ = 56865715200. Its totient is φ = 29624145408.

The previous prime is 42054623521. The next prime is 42054623587. The reversal of 42054623585 is 58532645024.

It is not a de Polignac number, because 42054623585 - 26 = 42054623521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42054623587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510341 + ... + 586989.

It is an arithmetic number, because the mean of its divisors is an integer number (1777053600).

Almost surely, 242054623585 is an apocalyptic number.

It is an amenable number.

42054623585 is a deficient number, since it is larger than the sum of its proper divisors (14811091615).

42054623585 is a wasteful number, since it uses less digits than its factorization.

42054623585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77057.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 42054623585 in words is "forty-two billion, fifty-four million, six hundred twenty-three thousand, five hundred eighty-five".

Divisors: 1 5 13 23 65 115 299 367 1495 1835 4771 8441 23855 42205 76649 109733 383245 548665 996437 1762927 4982185 8814635 22918051 28130183 114590255 140650915 365692379 646994209 1828461895 3234971045 8410924717 42054623585