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19054227455 = 54122267011
BaseRepresentation
bin10001101111101110…
…000110111111111111
31211011220220001012222
4101233232012333333
5303010340234310
612430422115555
71243116155354
oct215756067777
954156801188
1019054227455
11809868411a
12383927bbbb
131a48776103
14cca85262b
15767bec055
hex46fb86fff

19054227455 has 12 divisors (see below), whose sum is σ = 23436370056. Its totient is φ = 14871585600.

The previous prime is 19054227391. The next prime is 19054227481. The reversal of 19054227455 is 55472245091.

It is not a de Polignac number, because 19054227455 - 26 = 19054227391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125101 + ... + 1141910.

It is an arithmetic number, because the mean of its divisors is an integer number (1953030838).

Almost surely, 219054227455 is an apocalyptic number.

19054227455 is a deficient number, since it is larger than the sum of its proper divisors (4382142601).

19054227455 is an equidigital number, since it uses as much as digits as its factorization.

19054227455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267098 (or 2267057 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 19054227455 in words is "nineteen billion, fifty-four million, two hundred twenty-seven thousand, four hundred fifty-five".

Divisors: 1 5 41 205 1681 8405 2267011 11335055 92947451 464737255 3810845491 19054227455