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13244432 = 241934289
BaseRepresentation
bin110010100001…
…100000010000
3220220212221112
4302201200100
511342310212
61151512452
7220401335
oct62414020
926825845
1013244432
117526813
124528728
132989556
141a8a98c
151269422
hexca1810

13244432 has 20 divisors (see below), whose sum is σ = 25800060. Its totient is φ = 6586368.

The previous prime is 13244431. The next prime is 13244443. The reversal of 13244432 is 23444231.

It can be written as a sum of positive squares in 2 ways, for example, as 8386816 + 4857616 = 2896^2 + 2204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13244398 and 13244407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944 + ... + 5232.

It is an arithmetic number, because the mean of its divisors is an integer number (1290003).

Almost surely, 213244432 is an apocalyptic number.

It is an amenable number.

13244432 is a deficient number, since it is larger than the sum of its proper divisors (12555628).

13244432 is a wasteful number, since it uses less digits than its factorization.

13244432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490 (or 4484 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 13244432 is about 3639.2900406535. The cubic root of 13244432 is about 236.5980236907.

Adding to 13244432 its reverse (23444231), we get a palindrome (36688663).

The spelling of 13244432 in words is "thirteen million, two hundred forty-four thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 193 386 772 1544 3088 4289 8578 17156 34312 68624 827777 1655554 3311108 6622216 13244432