Base | Representation |
---|---|
bin | 101000101000011000… |
… | …0110010010101110111 |
3 | 22100012220101022200201 |
4 | 1101100300302111313 |
5 | 2412144100443221 |
6 | 104030054421331 |
7 | 6206146263115 |
oct | 1212060622567 |
9 | 270186338621 |
10 | 87254312311 |
11 | 3400586a311 |
12 | 14ab1361847 |
13 | 82c70301ca |
14 | 431a3b4ab5 |
15 | 240a2be891 |
hex | 1450c32577 |
87254312311 has 2 divisors, whose sum is σ = 87254312312. Its totient is φ = 87254312310.
The previous prime is 87254312293. The next prime is 87254312359. The reversal of 87254312311 is 11321345278.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 87254312311 - 211 = 87254310263 is a prime.
It is a super-2 number, since 2×872543123112 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87254312371) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43627156155 + 43627156156.
It is an arithmetic number, because the mean of its divisors is an integer number (43627156156).
Almost surely, 287254312311 is an apocalyptic number.
87254312311 is a deficient number, since it is larger than the sum of its proper divisors (1).
87254312311 is an equidigital number, since it uses as much as digits as its factorization.
87254312311 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 40320, while the sum is 37.
Adding to 87254312311 its reverse (11321345278), we get a palindrome (98575657589).
The spelling of 87254312311 in words is "eighty-seven billion, two hundred fifty-four million, three hundred twelve thousand, three hundred eleven".
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