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19392168 = 2331395813
BaseRepresentation
bin100100111111…
…0011010101000
31100111020001110
41021332122220
514431022133
61531350320
7323554635
oct111763250
940436043
1019392168
11aa45694
1265b23a0
13402c873
14280b18c
151a80c63
hex127e6a8

19392168 has 32 divisors (see below), whose sum is σ = 48837600. Its totient is φ = 6416448.

The previous prime is 19392167. The next prime is 19392199. The reversal of 19392168 is 86129391.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19392161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430 + ... + 6242.

It is an arithmetic number, because the mean of its divisors is an integer number (1526175).

Almost surely, 219392168 is an apocalyptic number.

It is an amenable number.

19392168 is an abundant number, since it is smaller than the sum of its proper divisors (29445432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19392168 is a wasteful number, since it uses less digits than its factorization.

19392168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961 (or 5957 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 19392168 is about 4403.6539373570. The cubic root of 19392168 is about 268.6635743011.

The spelling of 19392168 in words is "nineteen million, three hundred ninety-two thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 139 278 417 556 834 1112 1668 3336 5813 11626 17439 23252 34878 46504 69756 139512 808007 1616014 2424021 3232028 4848042 6464056 9696084 19392168