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12443253 = 323180337
BaseRepresentation
bin101111011101…
…111001110101
3212102011221020
4233131321311
511141141003
61122411353
7210523464
oct57357165
925364836
1012443253
117029889
124200b59
132768994
14191c9db
15115bd53
hexbdde75

12443253 has 8 divisors (see below), whose sum is σ = 17312448. Its totient is φ = 7934784.

The previous prime is 12443251. The next prime is 12443261. The reversal of 12443253 is 35234421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12443253 - 21 = 12443251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443251) 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, 90100 + ... + 90237.

It is an arithmetic number, because the mean of its divisors is an integer number (2164056).

Almost surely, 212443253 is an apocalyptic number.

It is an amenable number.

12443253 is a deficient number, since it is larger than the sum of its proper divisors (4869195).

12443253 is a wasteful number, since it uses less digits than its factorization.

12443253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180363.

The product of its digits is 2880, while the sum is 24.

The square root of 12443253 is about 3527.4995393338. The cubic root of 12443253 is about 231.7277139005.

Adding to 12443253 its reverse (35234421), we get a palindrome (47677674).

The spelling of 12443253 in words is "twelve million, four hundred forty-three thousand, two hundred fifty-three".

Divisors: 1 3 23 69 180337 541011 4147751 12443253