Base | Representation |
---|---|
bin | 10000111111010101… |
… | …011110011011111110 |
3 | 1202002100102011101210 |
4 | 100333111132123332 |
5 | 244330032312421 |
6 | 12214103145250 |
7 | 1214031244512 |
oct | 207725363376 |
9 | 52070364353 |
10 | 18242463486 |
11 | 7811438905 |
12 | 3651445226 |
13 | 19495347c0 |
14 | c50b04142 |
15 | 71b7ee576 |
hex | 43f55e6fe |
18242463486 has 32 divisors (see below), whose sum is σ = 39300861600. Its totient is φ = 5611722624.
The previous prime is 18242463451. The next prime is 18242463493. The reversal of 18242463486 is 68436424281.
It is a congruent number.
It is an unprimeable number.
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 in 15 ways as a sum of consecutive naturals, for example, 329116 + ... + 380528.
It is an arithmetic number, because the mean of its divisors is an integer number (1228151925).
Almost surely, 218242463486 is an apocalyptic number.
18242463486 is an abundant number, since it is smaller than the sum of its proper divisors (21058398114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18242463486 is a wasteful number, since it uses less digits than its factorization.
18242463486 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55980.
The product of its digits is 1769472, while the sum is 48.
It can be divided in two parts, 1824 and 2463486, that added together give a triangular number (2465310 = T2220).
The spelling of 18242463486 in words is "eighteen billion, two hundred forty-two million, four hundred sixty-three thousand, four hundred eighty-six".
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