Base | Representation |
---|---|
bin | 100010011000… |
… | …1101011101100 |
3 | 1020220222112120 |
4 | 1010301223230 |
5 | 14103414132 |
6 | 1442232540 |
7 | 306150351 |
oct | 104615354 |
9 | 36828476 |
10 | 18029292 |
11 | a1a4746 |
12 | 6055750 |
13 | 3973428 |
14 | 2574628 |
15 | 18b202c |
hex | 1131aec |
18029292 has 24 divisors (see below), whose sum is σ = 42212352. Its totient is φ = 5989200.
The previous prime is 18029287. The next prime is 18029303. The reversal of 18029292 is 29292081.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317 + ... + 6147.
It is an arithmetic number, because the mean of its divisors is an integer number (1758848).
Almost surely, 218029292 is an apocalyptic number.
18029292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18029292 is an abundant number, since it is smaller than the sum of its proper divisors (24183060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18029292 is a wasteful number, since it uses less digits than its factorization.
18029292 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5149 (or 5147 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 33.
The square root of 18029292 is about 4246.0913791392. The cubic root of 18029292 is about 262.2162230372.
The spelling of 18029292 in words is "eighteen million, twenty-nine thousand, two hundred ninety-two".
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