Base | Representation |
---|---|
bin | 100010010110… |
… | …1001111101111 |
3 | 1020220001121111 |
4 | 1010231033233 |
5 | 14102323434 |
6 | 1442012451 |
7 | 306043360 |
oct | 104551757 |
9 | 36801544 |
10 | 18011119 |
11 | a192025 |
12 | 6047127 |
13 | 3968089 |
14 | 256bb67 |
15 | 18ab964 |
hex | 112d3ef |
18011119 has 16 divisors (see below), whose sum is σ = 21307968. Its totient is φ = 14902272.
The previous prime is 18011113. The next prime is 18011137. The reversal of 18011119 is 91111081.
It is not a de Polignac number, because 18011119 - 27 = 18010991 is a prime.
It is a super-2 number, since 2×180111192 = 648800815264322, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 18011119.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18011113) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50847 + ... + 51199.
It is an arithmetic number, because the mean of its divisors is an integer number (1331748).
Almost surely, 218011119 is an apocalyptic number.
18011119 is a deficient number, since it is larger than the sum of its proper divisors (3296849).
18011119 is a wasteful number, since it uses less digits than its factorization.
18011119 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 594.
The product of its (nonzero) digits is 72, while the sum is 22.
The square root of 18011119 is about 4243.9508715347. The cubic root of 18011119 is about 262.1280913199.
The spelling of 18011119 in words is "eighteen million, eleven thousand, one hundred nineteen".
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