Base | Representation |
---|---|
bin | 100010011111… |
… | …1010001101111 |
3 | 1021000210220220 |
4 | 1010333101233 |
5 | 14112204400 |
6 | 1443342423 |
7 | 306501606 |
oct | 104772157 |
9 | 37023826 |
10 | 18084975 |
11 | a232567 |
12 | 6081a13 |
13 | 399288c |
14 | 258aa3d |
15 | 18c37a0 |
hex | 113f46f |
18084975 has 48 divisors (see below), whose sum is σ = 31367040. Its totient is φ = 9187200.
The previous prime is 18084967. The next prime is 18085019. The reversal of 18084975 is 57948081.
It is not a de Polignac number, because 18084975 - 23 = 18084967 is a prime.
It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269892 + ... + 269958.
It is an arithmetic number, because the mean of its divisors is an integer number (653480).
Almost surely, 218084975 is an apocalyptic number.
18084975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
18084975 is a deficient number, since it is larger than the sum of its proper divisors (13282065).
18084975 is a wasteful number, since it uses less digits than its factorization.
18084975 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 200 (or 195 counting only the distinct ones).
The product of its (nonzero) digits is 80640, while the sum is 42.
The square root of 18084975 is about 4252.6432956457. The cubic root of 18084975 is about 262.4858949337.
The spelling of 18084975 in words is "eighteen million, eighty-four thousand, nine hundred seventy-five".
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