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13244448 = 253719709
BaseRepresentation
bin110010100001…
…100000100000
3220220212222010
4302201200200
511342310243
61151512520
7220401360
oct62414040
926825863
1013244448
117526828
124528740
132989569
141a8a9a0
151269433
hexca1820

13244448 has 48 divisors (see below), whose sum is σ = 39735360. Its totient is φ = 3783936.

The previous prime is 13244447. The next prime is 13244453. The reversal of 13244448 is 84444231.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×132444483 (a number of 22 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13244443) 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 7 ways as a sum of consecutive naturals, for example, 9183 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (827820).

Almost surely, 213244448 is an apocalyptic number.

It is an amenable number.

13244448 is an abundant number, since it is smaller than the sum of its proper divisors (26490912).

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

13244448 is a wasteful number, since it uses less digits than its factorization.

13244448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19729 (or 19721 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 13244448 is about 3639.2922388838. The cubic root of 13244448 is about 236.5981189651.

Adding to 13244448 its reverse (84444231), we get a palindrome (97688679).

The spelling of 13244448 in words is "thirteen million, two hundred forty-four thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 19709 39418 59127 78836 118254 137963 157672 236508 275926 315344 413889 473016 551852 630688 827778 946032 1103704 1655556 1892064 2207408 3311112 4414816 6622224 13244448