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19680091507 = 593111072543
BaseRepresentation
bin10010010101000001…
…100101110101110011
31212210112120020022001
4102111001211311303
5310301100412012
613012500354431
71264456006036
oct222501456563
955715506261
1019680091507
11838999803a
1239929a5a17
131b1832927b
14d49a0d01d
157a2b28357
hex495065d73

19680091507 has 8 divisors (see below), whose sum is σ = 20078023680. Its totient is φ = 19284305160.

The previous prime is 19680091433. The next prime is 19680091517. The reversal of 19680091507 is 70519008691.

It is a happy number.

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 19680091507 - 211 = 19680089459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19680091517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517923 + ... + 554620.

It is an arithmetic number, because the mean of its divisors is an integer number (2509752960).

Almost surely, 219680091507 is an apocalyptic number.

19680091507 is a deficient number, since it is larger than the sum of its proper divisors (397932173).

19680091507 is a wasteful number, since it uses less digits than its factorization.

19680091507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072913.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 19680091507 in words is "nineteen billion, six hundred eighty million, ninety-one thousand, five hundred seven".

Divisors: 1 59 311 18349 1072543 63280037 333560873 19680091507