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13311442269 = 321738549417
BaseRepresentation
bin11000110010110110…
…00111110101011101
31021100200211022221100
430121123013311131
5204230212123034
610040514223313
7650604251406
oct143133076535
937320738840
1013311442269
115710a64664
1226b5b84b39
131341a77978
14903c7a9ad
1552d971099
hex3196c7d5d

13311442269 has 12 divisors (see below), whose sum is σ = 19338783516. Its totient is φ = 8822997312.

The previous prime is 13311442247. The next prime is 13311442271. The reversal of 13311442269 is 96224411331.

It can be written as a sum of positive squares in 2 ways, for example, as 11699018244 + 1612424025 = 108162^2 + 40155^2 .

It is not a de Polignac number, because 13311442269 - 27 = 13311442141 is a prime.

It is a super-2 number, since 2×133114422692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311442369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4273152 + ... + 4276265.

It is an arithmetic number, because the mean of its divisors is an integer number (1611565293).

Almost surely, 213311442269 is an apocalyptic number.

It is an amenable number.

13311442269 is a deficient number, since it is larger than the sum of its proper divisors (6027341247).

13311442269 is a wasteful number, since it uses less digits than its factorization.

13311442269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8549596 (or 8549593 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 13311442269 in words is "thirteen billion, three hundred eleven million, four hundred forty-two thousand, two hundred sixty-nine".

Divisors: 1 3 9 173 519 1557 8549417 25648251 76944753 1479049141 4437147423 13311442269