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13244634 = 2341319331
BaseRepresentation
bin110010100001…
…100011011010
3220220220020000
4302201203122
511342312014
61151513430
7220402044
oct62414332
926826200
1013244634
117526987
124528876
132989680
141a8aa94
151269509
hexca18da

13244634 has 80 divisors (see below), whose sum is σ = 33744480. Its totient is φ = 3849120.

The previous prime is 13244633. The next prime is 13244641. The reversal of 13244634 is 43644231.

13244634 is a `hidden beast` number, since 1 + 3 + 24 + 4 + 634 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13244598 and 13244607.

It is not an unprimeable number, because it can be changed into a prime (13244633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 39849 + ... + 40179.

It is an arithmetic number, because the mean of its divisors is an integer number (421806).

Almost surely, 213244634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13244634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16872240).

13244634 is an abundant number, since it is smaller than the sum of its proper divisors (20499846).

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

13244634 is a wasteful number, since it uses less digits than its factorization.

13244634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 368 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 13244634 is about 3639.3177932134. The cubic root of 13244634 is about 236.5992265247.

Adding to 13244634 its reverse (43644231), we get a palindrome (56888865).

The spelling of 13244634 in words is "thirteen million, two hundred forty-four thousand, six hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 19 26 27 38 39 54 57 78 81 114 117 162 171 234 247 331 342 351 494 513 662 702 741 993 1026 1053 1482 1539 1986 2106 2223 2979 3078 4303 4446 5958 6289 6669 8606 8937 12578 12909 13338 17874 18867 20007 25818 26811 37734 38727 40014 53622 56601 77454 81757 113202 116181 163514 169803 232362 245271 339606 348543 490542 509409 697086 735813 1018818 1471626 2207439 4414878 6622317 13244634