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12442254 = 2311188519
BaseRepresentation
bin101111011101…
…101010001110
3212102010120020
4233131222032
511141123004
61122403010
7210520536
oct57355216
925363506
1012442254
117029060
124200466
1327683a6
14191c4c6
15115b8d9
hexbdda8e

12442254 has 16 divisors (see below), whose sum is σ = 27146880. Its totient is φ = 3770360.

The previous prime is 12442237. The next prime is 12442259. The reversal of 12442254 is 45224421.

It is a happy number.

It is a super-4 number, since 4×124422544 (a number of 29 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94194 + ... + 94325.

It is an arithmetic number, because the mean of its divisors is an integer number (1696680).

Almost surely, 212442254 is an apocalyptic number.

12442254 is an abundant number, since it is smaller than the sum of its proper divisors (14704626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12442254 is a wasteful number, since it uses less digits than its factorization.

12442254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188535.

The product of its digits is 2560, while the sum is 24.

The square root of 12442254 is about 3527.3579347721. The cubic root of 12442254 is about 231.7215123555.

Adding to 12442254 its reverse (45224421), we get a palindrome (57666675).

The spelling of 12442254 in words is "twelve million, four hundred forty-two thousand, two hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 188519 377038 565557 1131114 2073709 4147418 6221127 12442254