Base | Representation |
---|---|
bin | 10000110001101111… |
… | …010110011000111000 |
3 | 1201111110012120102121 |
4 | 100301233112120320 |
5 | 243343134141430 |
6 | 12135314211024 |
7 | 1205261402164 |
oct | 206157263070 |
9 | 51443176377 |
10 | 18014365240 |
11 | 7704704263 |
12 | 35a8b83a74 |
13 | 19111c0021 |
14 | c2c6c9ca4 |
15 | 706794a7a |
hex | 431bd6638 |
18014365240 has 32 divisors (see below), whose sum is σ = 40742351280. Its totient is φ = 7168407552.
The previous prime is 18014365219. The next prime is 18014365277. The reversal of 18014365240 is 4256341081.
It is a junction number, because it is equal to n+sod(n) for n = 18014365196 and 18014365205.
It is a congruent number.
It is an unprimeable number.
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 in 7 ways as a sum of consecutive naturals, for example, 1159014 + ... + 1174453.
Almost surely, 218014365240 is an apocalyptic number.
18014365240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18014365240 is an abundant number, since it is smaller than the sum of its proper divisors (22727986040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18014365240 is a wasteful number, since it uses less digits than its factorization.
18014365240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2333671 (or 2333667 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 34.
The spelling of 18014365240 in words is "eighteen billion, fourteen million, three hundred sixty-five thousand, two hundred forty".
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