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16992423279 = 32131399103813
BaseRepresentation
bin11111101001101001…
…11100110101101111
31121212020020112121100
433310310330311233
5234300030021104
611450050334143
71141042133436
oct176464746557
947766215540
1016992423279
11722a864127
12336288a353
1317aa56c840
14b72aaa11d
15696bcc139
hex3f4d3cd6f

16992423279 has 24 divisors (see below), whose sum is σ = 26451807200. Its totient is φ = 10449300672.

The previous prime is 16992423257. The next prime is 16992423289. The reversal of 16992423279 is 97232429961.

16992423279 is a `hidden beast` number, since 1 + 69 + 92 + 423 + 2 + 79 = 666.

It is not a de Polignac number, because 16992423279 - 25 = 16992423247 is a prime.

It is a super-2 number, since 2×169924232792 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16992423209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111777 + ... + 215589.

Almost surely, 216992423279 is an apocalyptic number.

16992423279 is a deficient number, since it is larger than the sum of its proper divisors (9459383921).

16992423279 is a wasteful number, since it uses less digits than its factorization.

16992423279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105231 (or 105228 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 16992423279 in words is "sixteen billion, nine hundred ninety-two million, four hundred twenty-three thousand, two hundred seventy-nine".

Divisors: 1 3 9 13 39 117 1399 4197 12591 18187 54561 103813 163683 311439 934317 1349569 4048707 12146121 145234387 435703161 1307109483 1888047031 5664141093 16992423279