Base | Representation |
---|---|
bin | 101110010100… |
… | …111001100110 |
3 | 211211222202022 |
4 | 232110321212 |
5 | 11102103410 |
6 | 1112143142 |
7 | 205136630 |
oct | 56247146 |
9 | 24758668 |
10 | 12144230 |
11 | 694515a |
12 | 4097ab2 |
13 | 2692847 |
14 | 1881a50 |
15 | 10ed455 |
hex | b94e66 |
12144230 has 64 divisors (see below), whose sum is σ = 27509760. Its totient is φ = 3763584.
The previous prime is 12144229. The next prime is 12144233. The reversal of 12144230 is 3244121.
It is a junction number, because it is equal to n+sod(n) for n = 12144199 and 12144208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12144233) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 30392 + ... + 30788.
It is an arithmetic number, because the mean of its divisors is an integer number (429840).
Almost surely, 212144230 is an apocalyptic number.
12144230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12144230 is an abundant number, since it is smaller than the sum of its proper divisors (15365530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12144230 is a wasteful number, since it uses less digits than its factorization.
12144230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 453.
The product of its (nonzero) digits is 192, while the sum is 17.
The square root of 12144230 is about 3484.8572424132. The cubic root of 12144230 is about 229.8564321416.
Adding to 12144230 its reverse (3244121), we get a palindrome (15388351).
The spelling of 12144230 in words is "twelve million, one hundred forty-four thousand, two hundred thirty".
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