Base | Representation |
---|---|
bin | 101000101111000110… |
… | …1101110111001111011 |
3 | 22100210122001122210021 |
4 | 1101132031232321323 |
5 | 2413124340113334 |
6 | 104104320031311 |
7 | 6214556524036 |
oct | 1213615567173 |
9 | 270718048707 |
10 | 87480004219 |
11 | 341111aaa53 |
12 | 14b54a62537 |
13 | 8331a1160a |
14 | 433c36401d |
15 | 24200013b4 |
hex | 145e36ee7b |
87480004219 has 2 divisors, whose sum is σ = 87480004220. Its totient is φ = 87480004218.
The previous prime is 87480004211. The next prime is 87480004247. The reversal of 87480004219 is 91240008478.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 87480004219 - 23 = 87480004211 is a prime.
It is a super-2 number, since 2×874800042192 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (87480004211) 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 as a sum of consecutive naturals, namely, 43740002109 + 43740002110.
It is an arithmetic number, because the mean of its divisors is an integer number (43740002110).
Almost surely, 287480004219 is an apocalyptic number.
87480004219 is a deficient number, since it is larger than the sum of its proper divisors (1).
87480004219 is an equidigital number, since it uses as much as digits as its factorization.
87480004219 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 129024, while the sum is 43.
The spelling of 87480004219 in words is "eighty-seven billion, four hundred eighty million, four thousand, two hundred nineteen".
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