Base | Representation |
---|---|
bin | 10010001001100111… |
… | …011010100010011101 |
3 | 1212022012101112012102 |
4 | 102021213122202131 |
5 | 304403100230333 |
6 | 12541502014445 |
7 | 1256643022211 |
oct | 221147324235 |
9 | 55265345172 |
10 | 19488680093 |
11 | 82a0940893 |
12 | 393a877425 |
13 | 1ab778b28c |
14 | d2c424941 |
15 | 790e18ae8 |
hex | 4899da89d |
19488680093 has 2 divisors, whose sum is σ = 19488680094. Its totient is φ = 19488680092.
The previous prime is 19488680063. The next prime is 19488680119. The reversal of 19488680093 is 39008688491.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12455006404 + 7033673689 = 111602^2 + 83867^2 .
It is a cyclic number.
It is not a de Polignac number, because 19488680093 - 214 = 19488663709 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19488680033) 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, 9744340046 + 9744340047.
It is an arithmetic number, because the mean of its divisors is an integer number (9744340047).
Almost surely, 219488680093 is an apocalyptic number.
It is an amenable number.
19488680093 is a deficient number, since it is larger than the sum of its proper divisors (1).
19488680093 is an equidigital number, since it uses as much as digits as its factorization.
19488680093 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2985984, while the sum is 56.
The spelling of 19488680093 in words is "nineteen billion, four hundred eighty-eight million, six hundred eighty thousand, ninety-three".
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