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13242660 = 22351712983
BaseRepresentation
bin110010100001…
…000100100100
3220220210111220
4302201010210
511342231120
61151500340
7220363224
oct62410444
926823456
1013242660
117525452
1245276b0
1329887c2
141a8a084
151268b40
hexca1124

13242660 has 48 divisors (see below), whose sum is σ = 39263616. Its totient is φ = 3323392.

The previous prime is 13242637. The next prime is 13242661. The reversal of 13242660 is 6624231.

It is a self number, because there is not a number n which added to its sum of digits gives 13242660.

It is not an unprimeable number, because it can be changed into a prime (13242661) 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, 5472 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (817992).

Almost surely, 213242660 is an apocalyptic number.

13242660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13242660 is an abundant number, since it is smaller than the sum of its proper divisors (26020956).

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

13242660 is a wasteful number, since it uses less digits than its factorization.

13242660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012 (or 13010 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 13242660 is about 3639.0465784323. The cubic root of 13242660 is about 236.5874715735.

Adding to 13242660 its reverse (6624231), we get a palindrome (19866891).

The spelling of 13242660 in words is "thirteen million, two hundred forty-two thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 12983 25966 38949 51932 64915 77898 129830 155796 194745 220711 259660 389490 441422 662133 778980 882844 1103555 1324266 2207110 2648532 3310665 4414220 6621330 13242660