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12444430 = 251965497
BaseRepresentation
bin101111011110…
…001100001110
3212102020112211
4233132030032
511141210210
61122421034
7210530065
oct57361416
925366484
1012444430
11702a759
12420177a
13276938b
14191d1dc
15115c38a
hexbde30e

12444430 has 16 divisors (see below), whose sum is σ = 23579280. Its totient is φ = 4715712.

The previous prime is 12444413. The next prime is 12444437. The reversal of 12444430 is 3444421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444437) 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, 32559 + ... + 32938.

It is an arithmetic number, because the mean of its divisors is an integer number (1473705).

Almost surely, 212444430 is an apocalyptic number.

12444430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12444430 is a deficient number, since it is larger than the sum of its proper divisors (11134850).

12444430 is a wasteful number, since it uses less digits than its factorization.

12444430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65523.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 12444430 is about 3527.6663674446. Note that the first 3 decimals coincide. The cubic root of 12444430 is about 231.7350199996.

Adding to 12444430 its reverse (3444421), we get a palindrome (15888851).

Subtracting from 12444430 its reverse (3444421), we obtain a palindrome (9000009).

The spelling of 12444430 in words is "twelve million, four hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 65497 130994 327485 654970 1244443 2488886 6222215 12444430