Base | Representation |
---|---|
bin | 100010110001… |
… | …1011010101111 |
3 | 1021022022222120 |
4 | 1011203122233 |
5 | 14131424012 |
6 | 1450444023 |
7 | 310656312 |
oct | 105433257 |
9 | 37268876 |
10 | 18233007 |
11 | a323801 |
12 | 6133613 |
13 | 3a15080 |
14 | 25c8979 |
15 | 190258c |
hex | 11636af |
18233007 has 16 divisors (see below), whose sum is σ = 26677728. Its totient is φ = 11007360.
The previous prime is 18233003. The next prime is 18233021. The reversal of 18233007 is 70033281.
It is not a de Polignac number, because 18233007 - 22 = 18233003 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18233003) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2344 + ... + 6477.
It is an arithmetic number, because the mean of its divisors is an integer number (1667358).
Almost surely, 218233007 is an apocalyptic number.
18233007 is a deficient number, since it is larger than the sum of its proper divisors (8444721).
18233007 is a wasteful number, since it uses less digits than its factorization.
18233007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8890.
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 18233007 is about 4270.0125292556. The cubic root of 18233007 is about 263.2001300723.
Adding to 18233007 its reverse (70033281), we get a palindrome (88266288).
The spelling of 18233007 in words is "eighteen million, two hundred thirty-three thousand, seven".
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