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13202340261 = 311596780863
BaseRepresentation
bin11000100101110101…
…11011100110100101
31021002002112101010020
430102322323212211
5204014244342021
610022015545353
7645111016635
oct142272734645
937062471106
1013202340261
115665416710
12268552b259
131325298276
148d359a6c5
155240be7c6
hex312ebb9a5

13202340261 has 16 divisors (see below), whose sum is σ = 19528888320. Its totient is φ = 7865799920.

The previous prime is 13202340253. The next prime is 13202340269. The reversal of 13202340261 is 16204320231.

It is an interprime number because it is at equal distance from previous prime (13202340253) and next prime (13202340269).

It is not a de Polignac number, because 13202340261 - 23 = 13202340253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13202340269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3388485 + ... + 3392378.

It is an arithmetic number, because the mean of its divisors is an integer number (1220555520).

Almost surely, 213202340261 is an apocalyptic number.

13202340261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13202340261 is a deficient number, since it is larger than the sum of its proper divisors (6326548059).

13202340261 is a wasteful number, since it uses less digits than its factorization.

13202340261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780936.

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

Adding to 13202340261 its reverse (16204320231), we get a palindrome (29406660492).

The spelling of 13202340261 in words is "thirteen billion, two hundred two million, three hundred forty thousand, two hundred sixty-one".

Divisors: 1 3 11 33 59 177 649 1947 6780863 20342589 74589493 223768479 400070917 1200212751 4400780087 13202340261