Base | Representation |
---|---|
bin | 100011111110… |
… | …0100000101011 |
3 | 1022111012011022 |
4 | 1013330200223 |
5 | 14312010300 |
6 | 1512123055 |
7 | 316210433 |
oct | 107744053 |
9 | 38435138 |
10 | 18860075 |
11 | a711943 |
12 | 639648b |
13 | 3ba4610 |
14 | 270d2c3 |
15 | 19c8285 |
hex | 11fc82b |
18860075 has 12 divisors (see below), whose sum is σ = 25185888. Its totient is φ = 13927200.
The previous prime is 18860057. The next prime is 18860081. The reversal of 18860075 is 57006881.
It is a happy number.
It is not a de Polignac number, because 18860075 - 26 = 18860011 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28691 + ... + 29340.
It is an arithmetic number, because the mean of its divisors is an integer number (2098824).
Almost surely, 218860075 is an apocalyptic number.
18860075 is a deficient number, since it is larger than the sum of its proper divisors (6325813).
18860075 is a wasteful number, since it uses less digits than its factorization.
18860075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58054 (or 58049 counting only the distinct ones).
The product of its (nonzero) digits is 13440, while the sum is 35.
The square root of 18860075 is about 4342.8187850750. The cubic root of 18860075 is about 266.1835044475.
The spelling of 18860075 in words is "eighteen million, eight hundred sixty thousand, seventy-five".
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