Base | Representation |
---|---|
bin | 100010100011… |
… | …0100010010001 |
3 | 1021002022201000 |
4 | 1011012202101 |
5 | 14114132310 |
6 | 1444132213 |
7 | 306654360 |
oct | 105064221 |
9 | 37068630 |
10 | 18114705 |
11 | a252934 |
12 | 6097069 |
13 | 39a327b |
14 | 25977d7 |
15 | 18cc4c0 |
hex | 1146891 |
18114705 has 64 divisors (see below), whose sum is σ = 38131200. Its totient is φ = 7983360.
The previous prime is 18114703. The next prime is 18114709. The reversal of 18114705 is 50741181.
It is not a de Polignac number, because 18114705 - 21 = 18114703 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (18114703) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27075 + ... + 27735.
It is an arithmetic number, because the mean of its divisors is an integer number (595800).
Almost surely, 218114705 is an apocalyptic number.
18114705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18114705 is an abundant number, since it is smaller than the sum of its proper divisors (20016495).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18114705 is a wasteful number, since it uses less digits than its factorization.
18114705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 711 (or 705 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 27.
The square root of 18114705 is about 4256.1373333106. The cubic root of 18114705 is about 262.6296502402.
Adding to 18114705 its reverse (50741181), we get a palindrome (68855886).
The spelling of 18114705 in words is "eighteen million, one hundred fourteen thousand, seven hundred five".
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