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13016240 = 245162703
BaseRepresentation
bin110001101001…
…110010110000
3220111021220222
4301221302300
511313004430
61142552212
7215431136
oct61516260
926437828
1013016240
117390326
124438668
132909723
141a2b756
1512219e5
hexc69cb0

13016240 has 20 divisors (see below), whose sum is σ = 30262944. Its totient is φ = 5206464.

The previous prime is 13016239. The next prime is 13016243. The reversal of 13016240 is 4261031.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (13016243) 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 3 ways as a sum of consecutive naturals, for example, 81272 + ... + 81431.

Almost surely, 213016240 is an apocalyptic number.

13016240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13016240 is an abundant number, since it is smaller than the sum of its proper divisors (17246704).

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

13016240 is a wasteful number, since it uses less digits than its factorization.

13016240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162716 (or 162710 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13016240 is about 3607.8026553569. The cubic root of 13016240 is about 235.2313400168.

Adding to 13016240 its reverse (4261031), we get a palindrome (17277271).

The spelling of 13016240 in words is "thirteen million, sixteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 162703 325406 650812 813515 1301624 1627030 2603248 3254060 6508120 13016240