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19055163 = 347149907
BaseRepresentation
bin100100010110…
…0001000111011
31022212002202210
41020230020323
514334231123
61520230203
7320652261
oct110541073
938762683
1019055163
11a835476
12646b363
133c4235a
142760431
151a15e93
hex122c23b

19055163 has 16 divisors (see below), whose sum is σ = 26150400. Its totient is φ = 12336096.

The previous prime is 19055161. The next prime is 19055177. The reversal of 19055163 is 36155091.

It is not a de Polignac number, because 19055163 - 21 = 19055161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19055163.

It is not an unprimeable number, because it can be changed into a prime (19055161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20556 + ... + 21462.

It is an arithmetic number, because the mean of its divisors is an integer number (1634400).

Almost surely, 219055163 is an apocalyptic number.

19055163 is a deficient number, since it is larger than the sum of its proper divisors (7095237).

19055163 is a wasteful number, since it uses less digits than its factorization.

19055163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 19055163 is about 4365.2219874824. The cubic root of 19055163 is about 267.0981557780.

The spelling of 19055163 in words is "nineteen million, fifty-five thousand, one hundred sixty-three".

Divisors: 1 3 47 141 149 447 907 2721 7003 21009 42629 127887 135143 405429 6351721 19055163