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19340949 = 328122943
BaseRepresentation
bin100100111000…
…1111010010101
31100101121210110
41021301322111
514422402244
61530313233
7323252415
oct111617225
940347713
1019340949
11aa10161
126588819
134012464
1427d6645
151a709b9
hex1271e95

19340949 has 8 divisors (see below), whose sum is σ = 25880832. Its totient is φ = 12847520.

The previous prime is 19340947. The next prime is 19340963. The reversal of 19340949 is 94904391.

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

It is a cyclic number.

It is not a de Polignac number, because 19340949 - 21 = 19340947 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19340947) 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, 10629 + ... + 12314.

It is an arithmetic number, because the mean of its divisors is an integer number (3235104).

Almost surely, 219340949 is an apocalyptic number.

It is an amenable number.

19340949 is a deficient number, since it is larger than the sum of its proper divisors (6539883).

19340949 is a wasteful number, since it uses less digits than its factorization.

19340949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23227.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 19340949 is about 4397.8345807909. The cubic root of 19340949 is about 268.4268324642.

The spelling of 19340949 in words is "nineteen million, three hundred forty thousand, nine hundred forty-nine".

Divisors: 1 3 281 843 22943 68829 6446983 19340949