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19068428671 = 196714979127
BaseRepresentation
bin10001110000100100…
…010010000101111111
31211012220121112121221
4101300210102011333
5303023004204141
612432050334211
71243350653335
oct216044220577
954186545557
1019068428671
1180a56a3766
123841b8a367
131a4b6a8cb6
14ccc6abb55
157690a4bd1
hex47091217f

19068428671 has 8 divisors (see below), whose sum is σ = 20371614080. Its totient is φ = 17795201688.

The previous prime is 19068428627. The next prime is 19068428677. The reversal of 19068428671 is 17682486091.

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 19068428671 - 213 = 19068420479 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 (19068428677) 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, 7488291 + ... + 7490836.

It is an arithmetic number, because the mean of its divisors is an integer number (2546451760).

Almost surely, 219068428671 is an apocalyptic number.

19068428671 is a deficient number, since it is larger than the sum of its proper divisors (1303185409).

19068428671 is a wasteful number, since it uses less digits than its factorization.

19068428671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14979213.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 19068428671 in words is "nineteen billion, sixty-eight million, four hundred twenty-eight thousand, six hundred seventy-one".

Divisors: 1 19 67 1273 14979127 284603413 1003601509 19068428671