Base | Representation |
---|---|
bin | 10000111011101001… |
… | …110001011000100001 |
3 | 1201221001010222200020 |
4 | 100323221301120201 |
5 | 244213223100410 |
6 | 12204014544053 |
7 | 1212351121455 |
oct | 207351613041 |
9 | 51831128606 |
10 | 18180675105 |
11 | 778a57632a |
12 | 3634808029 |
13 | 19397ac828 |
14 | c4681c665 |
15 | 716196a70 |
hex | 43ba71621 |
18180675105 has 16 divisors (see below), whose sum is σ = 30353823360. Its totient is φ = 9274779008.
The previous prime is 18180675083. The next prime is 18180675119. The reversal of 18180675105 is 50157608181.
It is a cyclic number.
It is not a de Polignac number, because 18180675105 - 28 = 18180674849 is a prime.
It is a super-2 number, since 2×181806751052 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26348460 + ... + 26349149.
It is an arithmetic number, because the mean of its divisors is an integer number (1897113960).
Almost surely, 218180675105 is an apocalyptic number.
18180675105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18180675105 is a deficient number, since it is larger than the sum of its proper divisors (12173148255).
18180675105 is a wasteful number, since it uses less digits than its factorization.
18180675105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52697640.
The product of its (nonzero) digits is 67200, while the sum is 42.
The spelling of 18180675105 in words is "eighteen billion, one hundred eighty million, six hundred seventy-five thousand, one hundred five".
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