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19107068465 = 529631289711
BaseRepresentation
bin10001110010110111…
…101011101000110001
31211022121022122110102
4101302313223220301
5303112402142330
612435550442145
71244330254652
oct216267535061
954277278412
1019107068465
118115495381
123852b03355
131a566b7694
14cd3889529
1576c688945
hex472deba31

19107068465 has 8 divisors (see below), whose sum is σ = 22936238208. Its totient is φ = 15280484080.

The previous prime is 19107068459. The next prime is 19107068473. The reversal of 19107068465 is 56486070191.

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

It is a de Polignac number, because none of the positive numbers 2k-19107068465 is a prime.

It is a super-3 number, since 3×191070684653 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630041 + ... + 659670.

It is an arithmetic number, because the mean of its divisors is an integer number (2867029776).

Almost surely, 219107068465 is an apocalyptic number.

It is an amenable number.

19107068465 is a deficient number, since it is larger than the sum of its proper divisors (3829169743).

19107068465 is a wasteful number, since it uses less digits than its factorization.

19107068465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292679.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 19107068465 in words is "nineteen billion, one hundred seven million, sixty-eight thousand, four hundred sixty-five".

Divisors: 1 5 2963 14815 1289711 6448555 3821413693 19107068465