Base | Representation |
---|---|
bin | 100010100111… |
… | …0101100000101 |
3 | 1021011000111220 |
4 | 1011032230011 |
5 | 14121214401 |
6 | 1444550553 |
7 | 310153626 |
oct | 105165405 |
9 | 37130456 |
10 | 18148101 |
11 | a275a34 |
12 | 60b2459 |
13 | 39b552a |
14 | 25a5a4d |
15 | 18d7336 |
hex | 114eb05 |
18148101 has 16 divisors (see below), whose sum is σ = 24845184. Its totient is φ = 11778624.
The previous prime is 18148073. The next prime is 18148103. The reversal of 18148101 is 10184181.
It is not a de Polignac number, because 18148101 - 25 = 18148069 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18148103) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24600 + ... + 25326.
It is an arithmetic number, because the mean of its divisors is an integer number (1552824).
Almost surely, 218148101 is an apocalyptic number.
It is an amenable number.
18148101 is a deficient number, since it is larger than the sum of its proper divisors (6697083).
18148101 is a wasteful number, since it uses less digits than its factorization.
18148101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 940.
The product of its (nonzero) digits is 256, while the sum is 24.
The square root of 18148101 is about 4260.0588024111. The cubic root of 18148101 is about 262.7909445297.
The spelling of 18148101 in words is "eighteen million, one hundred forty-eight thousand, one hundred one".
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