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16486623988 = 2219216929263
BaseRepresentation
bin11110101101010110…
…11110101011110100
31120112222111021102021
433112223132223310
5232231033431423
611323541322524
71122360664102
oct172653365364
946488437367
1016486623988
116aa02a668a
123241406444
131729836c13
14b25844c72
156675ba95d
hex3d6adeaf4

16486623988 has 12 divisors (see below), whose sum is σ = 30370096960. Its totient is φ = 7809453432.

The previous prime is 16486623983. The next prime is 16486623991. The reversal of 16486623988 is 88932668461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16486623983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108464556 + ... + 108464707.

Almost surely, 216486623988 is an apocalyptic number.

It is an amenable number.

16486623988 is a deficient number, since it is larger than the sum of its proper divisors (13883472972).

16486623988 is a wasteful number, since it uses less digits than its factorization.

16486623988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216929286 (or 216929284 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 61.

The spelling of 16486623988 in words is "sixteen billion, four hundred eighty-six million, six hundred twenty-three thousand, nine hundred eighty-eight".

Divisors: 1 2 4 19 38 76 216929263 433858526 867717052 4121655997 8243311994 16486623988