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19310068 = 2243311149
BaseRepresentation
bin100100110101…
…0010111110100
31100100001102201
41021222113310
514420410233
61525514244
7323063401
oct111522764
940301381
1019310068
11a999a38
126572984
13400139b
1427c92a8
151a6677d
hex126a5f4

19310068 has 12 divisors (see below), whose sum is σ = 33873700. Its totient is φ = 9631872.

The previous prime is 19310059. The next prime is 19310069. The reversal of 19310068 is 86001391.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3849444 + 15460624 = 1962^2 + 3932^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19310069) 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 3 ways as a sum of consecutive naturals, for example, 3843 + ... + 7306.

Almost surely, 219310068 is an apocalyptic number.

It is an amenable number.

19310068 is a deficient number, since it is larger than the sum of its proper divisors (14563632).

19310068 is a wasteful number, since it uses less digits than its factorization.

19310068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11586 (or 11584 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 19310068 is about 4394.3222458077. The cubic root of 19310068 is about 268.2838938616.

The spelling of 19310068 in words is "nineteen million, three hundred ten thousand, sixty-eight".

Divisors: 1 2 4 433 866 1732 11149 22298 44596 4827517 9655034 19310068