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13946513 = 71925519
BaseRepresentation
bin110101001100…
…111010010001
3222020120000112
4311030322101
512032242023
61214531105
7226354250
oct65147221
928216015
1013946513
117966249
124806a95
132b73c99
141bd0797
151357478
hexd4ce91

13946513 has 12 divisors (see below), whose sum is σ = 16824960. Its totient is φ = 11322936.

The previous prime is 13946503. The next prime is 13946531. The reversal of 13946513 is 31564931.

13946513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-13946513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13946513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13946503) 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, 233 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (1402080).

Almost surely, 213946513 is an apocalyptic number.

It is an amenable number.

13946513 is a deficient number, since it is larger than the sum of its proper divisors (2878447).

13946513 is an equidigital number, since it uses as much as digits as its factorization.

13946513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564 (or 5545 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 13946513 is about 3734.5030459219. The cubic root of 13946513 is about 240.7069030910.

The spelling of 13946513 in words is "thirteen million, nine hundred forty-six thousand, five hundred thirteen".

Divisors: 1 7 19 133 361 2527 5519 38633 104861 734027 1992359 13946513