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13051122513 = 3111331710589
BaseRepresentation
bin11000010011110100…
…00101001101010001
31020200112222201100220
430021322011031101
5203212041410023
65555014503253
7641263465602
oct141172051521
936615881326
1013051122513
115598022570
122642964b29
1312ccb61000
148bb475da9
15515b9e3e3
hex309e85351

13051122513 has 64 divisors (see below), whose sum is σ = 21776428800. Its totient is φ = 6871188480.

The previous prime is 13051122509. The next prime is 13051122523. The reversal of 13051122513 is 31522115031.

It is not a de Polignac number, because 13051122513 - 22 = 13051122509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13051122523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1227223 + ... + 1237811.

It is an arithmetic number, because the mean of its divisors is an integer number (340256700).

Almost surely, 213051122513 is an apocalyptic number.

13051122513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13051122513 is a deficient number, since it is larger than the sum of its proper divisors (8725306287).

13051122513 is a wasteful number, since it uses less digits than its factorization.

13051122513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10659 (or 10633 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13051122513 its reverse (31522115031), we get a palindrome (44573237544).

The spelling of 13051122513 in words is "thirteen billion, fifty-one million, one hundred twenty-two thousand, five hundred thirteen".

Divisors: 1 3 11 13 17 33 39 51 143 169 187 221 429 507 561 663 1859 2197 2431 2873 5577 6591 7293 8619 10589 24167 31603 31767 37349 72501 94809 112047 116479 137657 180013 349437 410839 412971 540039 1232517 1514227 1789541 1980143 2340169 4542681 5368623 5940429 7020507 19684951 23264033 25741859 30422197 59054853 69792099 77225577 91266591 255904363 334644167 395488561 767713089 1003932501 1186465683 4350374171 13051122513