Base | Representation |
---|---|
bin | 10010011010100110110111… |
… | …010000011000110110010101 |
3 | 101121202212210102220200000000 |
4 | 102122212313100120312111 |
5 | 41103443210320433120 |
6 | 444131443524241513 |
7 | 23026366542625050 |
oct | 2232466720306625 |
9 | 347685712820000 |
10 | 80993272827285 |
11 | 23897066025665 |
12 | 9101057240299 |
13 | 362682c4ca790 |
14 | 16001497bda97 |
15 | 956c4a7c8990 |
hex | 49a9b7418d95 |
80993272827285 has 1152 divisors, whose sum is σ = 197941691351040. Its totient is φ = 30855889612800.
The previous prime is 80993272827263. The next prime is 80993272827289. The reversal of 80993272827285 is 58272827239908.
80993272827285 is a `hidden beast` number, since 8 + 0 + 9 + 9 + 3 + 272 + 8 + 272 + 85 = 666.
It is not a de Polignac number, because 80993272827285 - 216 = 80993272761749 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80993272827289) 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 1151 ways as a sum of consecutive naturals, for example, 128357008920 + ... + 128357009550.
Almost surely, 280993272827285 is an apocalyptic number.
It is an amenable number.
80993272827285 is an abundant number, since it is smaller than the sum of its proper divisors (116948418523755).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80993272827285 is a wasteful number, since it uses less digits than its factorization.
80993272827285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 803 (or 782 counting only the distinct ones).
The product of its (nonzero) digits is 487710720, while the sum is 72.
The spelling of 80993272827285 in words is "eighty trillion, nine hundred ninety-three billion, two hundred seventy-two million, eight hundred twenty-seven thousand, two hundred eighty-five".
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