Base | Representation |
---|---|
bin | 100101011100101000… |
… | …1010010111110110111 |
3 | 21200120110010222111111 |
4 | 1022321101102332313 |
5 | 2304143414333422 |
6 | 100535435015451 |
7 | 5544553300513 |
oct | 1127121227667 |
9 | 250513128444 |
10 | 80417730487 |
11 | 31117792196 |
12 | 1370389a587 |
13 | 7777843813 |
14 | 3c6c437143 |
15 | 2159ed5a77 |
hex | 12b9452fb7 |
80417730487 has 2 divisors, whose sum is σ = 80417730488. Its totient is φ = 80417730486.
The previous prime is 80417730469. The next prime is 80417730683. The reversal of 80417730487 is 78403771408.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80417730487 - 211 = 80417728439 is a prime.
It is a super-2 number, since 2×804177304872 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 80417730487.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80417730467) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40208865243 + 40208865244.
It is an arithmetic number, because the mean of its divisors is an integer number (40208865244).
Almost surely, 280417730487 is an apocalyptic number.
80417730487 is a deficient number, since it is larger than the sum of its proper divisors (1).
80417730487 is an equidigital number, since it uses as much as digits as its factorization.
80417730487 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1053696, while the sum is 49.
The spelling of 80417730487 in words is "eighty billion, four hundred seventeen million, seven hundred thirty thousand, four hundred eighty-seven".
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