Base | Representation |
---|---|
bin | 100011111010… |
… | …1101100010101 |
3 | 1022102202212000 |
4 | 1013311230111 |
5 | 14310112044 |
6 | 1511345513 |
7 | 316033140 |
oct | 107655425 |
9 | 38382760 |
10 | 18832149 |
11 | a6a2966 |
12 | 6382299 |
13 | 3b949ab |
14 | 2703057 |
15 | 19bed69 |
hex | 11f5b15 |
18832149 has 32 divisors (see below), whose sum is σ = 32759040. Its totient is φ = 10466496.
The previous prime is 18832129. The next prime is 18832171. The reversal of 18832149 is 94123881.
It is not a de Polignac number, because 18832149 - 25 = 18832117 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18832129) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5647 + ... + 8339.
It is an arithmetic number, because the mean of its divisors is an integer number (1023720).
Almost surely, 218832149 is an apocalyptic number.
It is an amenable number.
18832149 is a deficient number, since it is larger than the sum of its proper divisors (13926891).
18832149 is a wasteful number, since it uses less digits than its factorization.
18832149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2746 (or 2740 counting only the distinct ones).
The product of its digits is 13824, while the sum is 36.
The square root of 18832149 is about 4339.6024011423. The cubic root of 18832149 is about 266.0520607770.
It can be divided in two parts, 18832 and 149, that added together give a palindrome (18981).
The spelling of 18832149 in words is "eighteen million, eight hundred thirty-two thousand, one hundred forty-nine".
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