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13244430 = 2354310267
BaseRepresentation
bin110010100001…
…100000001110
3220220212221110
4302201200032
511342310210
61151512450
7220401333
oct62414016
926825843
1013244430
117526811
124528726
132989554
141a8a98a
151269420
hexca180e

13244430 has 32 divisors (see below), whose sum is σ = 32529024. Its totient is φ = 3449376.

The previous prime is 13244383. The next prime is 13244431. The reversal of 13244430 is 3444231.

It is a junction number, because it is equal to n+sod(n) for n = 13244397 and 13244406.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3844 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (1016532).

Almost surely, 213244430 is an apocalyptic number.

13244430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13244430 is an abundant number, since it is smaller than the sum of its proper divisors (19284594).

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

13244430 is a wasteful number, since it uses less digits than its factorization.

13244430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13244430 is about 3639.2897658747. The cubic root of 13244430 is about 236.5980117814.

Adding to 13244430 its reverse (3444231), we get a palindrome (16688661).

The spelling of 13244430 in words is "thirteen million, two hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 10267 20534 30801 51335 61602 102670 154005 308010 441481 882962 1324443 2207405 2648886 4414810 6622215 13244430