Base | Representation |
---|---|
bin | 100010100100… |
… | …1000010000001 |
3 | 1021002211201200 |
4 | 1011021002001 |
5 | 14114444204 |
6 | 1444251413 |
7 | 310026234 |
oct | 105110201 |
9 | 37084650 |
10 | 18124929 |
11 | a25a589 |
12 | 60a0b69 |
13 | 39a7b14 |
14 | 259b41b |
15 | 18d0539 |
hex | 1149081 |
18124929 has 12 divisors (see below), whose sum is σ = 26222976. Its totient is φ = 12063672.
The previous prime is 18124927. The next prime is 18124937. The reversal of 18124929 is 92942181.
It is not a de Polignac number, because 18124929 - 21 = 18124927 is a prime.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 18124893 and 18124902.
It is not an unprimeable number, because it can be changed into a prime (18124927) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6184 + ... + 8630.
It is an arithmetic number, because the mean of its divisors is an integer number (2185248).
Almost surely, 218124929 is an apocalyptic number.
It is an amenable number.
18124929 is a deficient number, since it is larger than the sum of its proper divisors (8098047).
18124929 is a wasteful number, since it uses less digits than its factorization.
18124929 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3276 (or 3273 counting only the distinct ones).
The product of its digits is 10368, while the sum is 36.
The square root of 18124929 is about 4257.3382529463. The cubic root of 18124929 is about 262.6790506313.
The spelling of 18124929 in words is "eighteen million, one hundred twenty-four thousand, nine hundred twenty-nine".
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