Base | Representation |
---|---|
bin | 100010101000… |
… | …1101010110100 |
3 | 1021011122021000 |
4 | 1011101222310 |
5 | 14122112213 |
6 | 1445123300 |
7 | 310234335 |
oct | 105215264 |
9 | 37148230 |
10 | 18160308 |
11 | a284121 |
12 | 60b9530 |
13 | 39bac5a |
14 | 25aa28c |
15 | 18dac73 |
hex | 1151ab4 |
18160308 has 24 divisors (see below), whose sum is σ = 47082560. Its totient is φ = 6053400.
The previous prime is 18160297. The next prime is 18160313. The reversal of 18160308 is 80306181.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83968 + ... + 84183.
Almost surely, 218160308 is an apocalyptic number.
18160308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
18160308 is an abundant number, since it is smaller than the sum of its proper divisors (28922252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18160308 is a wasteful number, since it uses less digits than its factorization.
18160308 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 168164 (or 168156 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 27.
The square root of 18160308 is about 4261.4912882699. The cubic root of 18160308 is about 262.8498518884.
Adding to 18160308 its reverse (80306181), we get a palindrome (98466489).
The spelling of 18160308 in words is "eighteen million, one hundred sixty thousand, three hundred eight".
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