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19319027 = 713212297
BaseRepresentation
bin100100110110…
…0100011110011
31100100111201112
41021230203303
514421202102
61530023535
7323131460
oct111544363
940314645
1019319027
11a9a5742
126577bab
1340054a0
1427cc667
151a69252
hex126c8f3

19319027 has 8 divisors (see below), whose sum is σ = 23777376. Its totient is φ = 15285312.

The previous prime is 19319023. The next prime is 19319039. The reversal of 19319027 is 72091391.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19319027 - 22 = 19319023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19318984 and 19319002.

It is not an unprimeable number, because it can be changed into a prime (19319023) 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, 106058 + ... + 106239.

It is an arithmetic number, because the mean of its divisors is an integer number (2972172).

Almost surely, 219319027 is an apocalyptic number.

19319027 is a deficient number, since it is larger than the sum of its proper divisors (4458349).

19319027 is a wasteful number, since it uses less digits than its factorization.

19319027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212317.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 19319027 is about 4395.3415111911. The cubic root of 19319027 is about 268.3253779860.

The spelling of 19319027 in words is "nineteen million, three hundred nineteen thousand, twenty-seven".

Divisors: 1 7 13 91 212297 1486079 2759861 19319027