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16494064709 = 471572235271
BaseRepresentation
bin11110101110001111…
…10111010001000101
31120120111111022011112
433113013313101011
5232234440032314
611324405014405
71122511144133
oct172707672105
946514438145
1016494064709
116aa4518a41
1232439b4405
13172b240905
14b26820753
1566808a43e
hex3d71f7445

16494064709 has 8 divisors (see below), whose sum is σ = 16952302848. Its totient is φ = 16040297520.

The previous prime is 16494064633. The next prime is 16494064723. The reversal of 16494064709 is 90746049461.

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 16494064709 - 216 = 16493999173 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 (16494064739) 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, 1110257 + ... + 1125014.

It is an arithmetic number, because the mean of its divisors is an integer number (2119037856).

Almost surely, 216494064709 is an apocalyptic number.

It is an amenable number.

16494064709 is a deficient number, since it is larger than the sum of its proper divisors (458238139).

16494064709 is a wasteful number, since it uses less digits than its factorization.

16494064709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235475.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 16494064709 in words is "sixteen billion, four hundred ninety-four million, sixty-four thousand, seven hundred nine".

Divisors: 1 47 157 7379 2235271 105057737 350937547 16494064709