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12144230 = 2571923397
BaseRepresentation
bin101110010100…
…111001100110
3211211222202022
4232110321212
511102103410
61112143142
7205136630
oct56247146
924758668
1012144230
11694515a
124097ab2
132692847
141881a50
1510ed455
hexb94e66

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".

Divisors: 1 2 5 7 10 14 19 23 35 38 46 70 95 115 133 161 190 230 266 322 397 437 665 794 805 874 1330 1610 1985 2185 2779 3059 3970 4370 5558 6118 7543 9131 13895 15086 15295 18262 27790 30590 37715 45655 52801 63917 75430 91310 105602 127834 173489 264005 319585 346978 528010 639170 867445 1214423 1734890 2428846 6072115 12144230