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16934884687 = 721111465731
BaseRepresentation
bin11111100010110010…
…11101010101001111
31121201012222021111101
433301121131111033
5234140312302222
611440233203531
71136443100440
oct176131352517
947635867441
1016934884687
117200334576
1233475605a7
13179b675036
14b691ad2c7
15691b13927
hex3f165d54f

16934884687 has 8 divisors (see below), whose sum is σ = 19445881472. Its totient is φ = 14446819800.

The previous prime is 16934884657. The next prime is 16934884709. The reversal of 16934884687 is 78648843961.

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

It is not a de Polignac number, because 16934884687 - 231 = 14787401039 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 (16934884627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5731389 + ... + 5734342.

It is an arithmetic number, because the mean of its divisors is an integer number (2430735184).

Almost surely, 216934884687 is an apocalyptic number.

16934884687 is a deficient number, since it is larger than the sum of its proper divisors (2510996785).

16934884687 is a wasteful number, since it uses less digits than its factorization.

16934884687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11465949.

The product of its digits is 55738368, while the sum is 64.

The spelling of 16934884687 in words is "sixteen billion, nine hundred thirty-four million, eight hundred eighty-four thousand, six hundred eighty-seven".

Divisors: 1 7 211 1477 11465731 80260117 2419269241 16934884687