Base | Representation |
---|---|
bin | 100101100101001100… |
… | …1110101111000010011 |
3 | 21201022111001002120011 |
4 | 1023022121311320103 |
5 | 2310241011331001 |
6 | 101024144055351 |
7 | 5554643511310 |
oct | 1131231657023 |
9 | 251274032504 |
10 | 80705183251 |
11 | 31254a76760 |
12 | 13784004557 |
13 | 77c226a504 |
14 | 3c986a1d07 |
15 | 2175366d51 |
hex | 12ca675e13 |
80705183251 has 16 divisors (see below), whose sum is σ = 102268954368. Its totient is φ = 61856215200.
The previous prime is 80705183233. The next prime is 80705183309. The reversal of 80705183251 is 15238150708.
It is a cyclic number.
It is not a de Polignac number, because 80705183251 - 25 = 80705183219 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80705183201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8586445 + ... + 8595838.
It is an arithmetic number, because the mean of its divisors is an integer number (6391809648).
Almost surely, 280705183251 is an apocalyptic number.
80705183251 is a deficient number, since it is larger than the sum of its proper divisors (21563771117).
80705183251 is a wasteful number, since it uses less digits than its factorization.
80705183251 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17182362.
The product of its (nonzero) digits is 67200, while the sum is 40.
The spelling of 80705183251 in words is "eighty billion, seven hundred five million, one hundred eighty-three thousand, two hundred fifty-one".
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