Base | Representation |
---|---|
bin | 100010101100… |
… | …1000010011010 |
3 | 1021020011122212 |
4 | 1011121002122 |
5 | 14124043430 |
6 | 1445515122 |
7 | 310421333 |
oct | 105310232 |
9 | 37204585 |
10 | 18190490 |
11 | a2a486a |
12 | 6112aa2 |
13 | 39cb906 |
14 | 25b728a |
15 | 18e4b95 |
hex | 115909a |
18190490 has 16 divisors (see below), whose sum is σ = 33799680. Its totient is φ = 7041360.
The previous prime is 18190489. The next prime is 18190531. The reversal of 18190490 is 9409181.
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, 29030 + ... + 29649.
It is an arithmetic number, because the mean of its divisors is an integer number (2112480).
Almost surely, 218190490 is an apocalyptic number.
18190490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18190490 is a deficient number, since it is larger than the sum of its proper divisors (15609190).
18190490 is a wasteful number, since it uses less digits than its factorization.
18190490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58717.
The product of its (nonzero) digits is 2592, while the sum is 32.
The square root of 18190490 is about 4265.0310667098. The cubic root of 18190490 is about 262.9953880265.
The spelling of 18190490 in words is "eighteen million, one hundred ninety thousand, four hundred ninety".
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