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19044148 = 2217280061
BaseRepresentation
bin100100010100…
…1011100110100
31022211112122211
41020221130310
514333403043
61520103204
7320605204
oct110513464
938745584
1019044148
11a828172
126464b04
133c3a336
14275a404
151a12a9d
hex1229734

19044148 has 12 divisors (see below), whose sum is σ = 35287812. Its totient is φ = 8961920.

The previous prime is 19044133. The next prime is 19044149. The reversal of 19044148 is 84144091.

It can be written as a sum of positive squares in 2 ways, for example, as 13972644 + 5071504 = 3738^2 + 2252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19044149) 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 3 ways as a sum of consecutive naturals, for example, 139963 + ... + 140098.

It is an arithmetic number, because the mean of its divisors is an integer number (2940651).

Almost surely, 219044148 is an apocalyptic number.

It is an amenable number.

19044148 is a deficient number, since it is larger than the sum of its proper divisors (16243664).

19044148 is a wasteful number, since it uses less digits than its factorization.

19044148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280082 (or 280080 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 19044148 is about 4363.9601281405. The cubic root of 19044148 is about 267.0466797333.

The spelling of 19044148 in words is "nineteen million, forty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 17 34 68 280061 560122 1120244 4761037 9522074 19044148