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13197613 = 1113412251
BaseRepresentation
bin110010010110…
…000100101101
3220211111201111
4302112010231
511334310423
61150512021
7220115002
oct62260455
926744644
1013197613
1174a4620
124505611
132971150
141a778a9
15125a60d
hexc9612d

13197613 has 16 divisors (see below), whose sum is σ = 15890112. Its totient is φ = 10800000.

The previous prime is 13197601. The next prime is 13197619. The reversal of 13197613 is 31679131.

It is a cyclic number.

It is not a de Polignac number, because 13197613 - 221 = 11100461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13197619) 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 15 ways as a sum of consecutive naturals, for example, 4738 + ... + 6988.

It is an arithmetic number, because the mean of its divisors is an integer number (993132).

Almost surely, 213197613 is an apocalyptic number.

13197613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13197613 is a deficient number, since it is larger than the sum of its proper divisors (2692499).

13197613 is a wasteful number, since it uses less digits than its factorization.

13197613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its digits is 3402, while the sum is 31.

The square root of 13197613 is about 3632.8519100013. The cubic root of 13197613 is about 236.3189035976.

The spelling of 13197613 in words is "thirteen million, one hundred ninety-seven thousand, six hundred thirteen".

Divisors: 1 11 13 41 143 451 533 2251 5863 24761 29263 92291 321893 1015201 1199783 13197613