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19075329839 = 40283473533
BaseRepresentation
bin10001110000111110…
…100110111100101111
31211020101121011020202
4101300332212330233
5303031241023324
612432454304115
71243463425346
oct216076467457
954211534222
1019075329839
1180a9587705
12384435803b
131a4cc54227
14ccd586b5d
157699b98ae
hex470fa6f2f

19075329839 has 4 divisors (see below), whose sum is σ = 19075843656. Its totient is φ = 19074816024.

The previous prime is 19075329829. The next prime is 19075329853. The reversal of 19075329839 is 93892357091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93892357091 = 137222489007.

It is a cyclic number.

It is not a de Polignac number, because 19075329839 - 28 = 19075329583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19075329829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196484 + ... + 277049.

It is an arithmetic number, because the mean of its divisors is an integer number (4768960914).

Almost surely, 219075329839 is an apocalyptic number.

19075329839 is a deficient number, since it is larger than the sum of its proper divisors (513817).

19075329839 is an equidigital number, since it uses as much as digits as its factorization.

19075329839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513816.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 19075329839 in words is "nineteen billion, seventy-five million, three hundred twenty-nine thousand, eight hundred thirty-nine".

Divisors: 1 40283 473533 19075329839