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13324540 = 2251394793
BaseRepresentation
bin110010110101…
…000011111100
3221001221211111
4302311003330
511402341130
61153331404
7221154025
oct62650374
927057744
1013324540
117580a19
124566b64
1329b6b58
141aabc4c
15128302a
hexcb50fc

13324540 has 24 divisors (see below), whose sum is σ = 28188720. Its totient is φ = 5290368.

The previous prime is 13324537. The next prime is 13324541. The reversal of 13324540 is 4542331.

Adding to 13324540 its reverse (4542331), we get a palindrome (17866871).

It is a super-3 number, since 3×133245403 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13324541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (1174530).

Almost surely, 213324540 is an apocalyptic number.

13324540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13324540 is an abundant number, since it is smaller than the sum of its proper divisors (14864180).

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

13324540 is a wasteful number, since it uses less digits than its factorization.

13324540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13324540 is about 3650.2794413579. The cubic root of 13324540 is about 237.0740805882.

The spelling of 13324540 in words is "thirteen million, three hundred twenty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 4793 9586 19172 23965 47930 95860 666227 1332454 2664908 3331135 6662270 13324540