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12023230 = 254327961
BaseRepresentation
bin101101110111…
…010110111110
3211121211202211
4231313112332
511034220410
61105411034
7204124102
oct55672676
924554684
1012023230
11687225a
124039a7a
13264c74b
14184d902
1510c768a
hexb775be

12023230 has 16 divisors (see below), whose sum is σ = 22145904. Its totient is φ = 4697280.

The previous prime is 12023191. The next prime is 12023239. The reversal of 12023230 is 3232021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12023230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13551 + ... + 14410.

It is an arithmetic number, because the mean of its divisors is an integer number (1384119).

Almost surely, 212023230 is an apocalyptic number.

12023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12023230 is a deficient number, since it is larger than the sum of its proper divisors (10122674).

12023230 is a wasteful number, since it uses less digits than its factorization.

12023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28011.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 12023230 is about 3467.4529557011. The cubic root of 12023230 is about 229.0904850176.

Adding to 12023230 its reverse (3232021), we get a palindrome (15255251).

The spelling of 12023230 in words is "twelve million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 27961 55922 139805 279610 1202323 2404646 6011615 12023230