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18014365240 = 2351932333467
BaseRepresentation
bin10000110001101111…
…010110011000111000
31201111110012120102121
4100301233112120320
5243343134141430
612135314211024
71205261402164
oct206157263070
951443176377
1018014365240
117704704263
1235a8b83a74
1319111c0021
14c2c6c9ca4
15706794a7a
hex431bd6638

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".

Divisors: 1 2 4 5 8 10 20 40 193 386 772 965 1544 1930 3860 7720 2333467 4666934 9333868 11667335 18667736 23334670 46669340 93338680 450359131 900718262 1801436524 2251795655 3602873048 4503591310 9007182620 18014365240