Base | Representation |
---|---|
bin | 11001000111110011… |
… | …01000010110001001 |
3 | 1021210221120100120011 |
4 | 30203321220112021 |
5 | 210110211240123 |
6 | 10110153431521 |
7 | 655140260350 |
oct | 144371502611 |
9 | 37727510504 |
10 | 13487211913 |
11 | 57a11a7a2a |
12 | 2744a0b5a1 |
13 | 136c2ca186 |
14 | 91d352997 |
15 | 53e0e0e0d |
hex | 323e68589 |
13487211913 has 16 divisors (see below), whose sum is σ = 15896657920. Its totient is φ = 11202677136.
The previous prime is 13487211893. The next prime is 13487211929. The reversal of 13487211913 is 31911278431.
It is a happy number.
It is not a de Polignac number, because 13487211913 - 29 = 13487211401 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13487211113) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138183 + ... + 214636.
It is an arithmetic number, because the mean of its divisors is an integer number (993541120).
Almost surely, 213487211913 is an apocalyptic number.
It is an amenable number.
13487211913 is a deficient number, since it is larger than the sum of its proper divisors (2409446007).
13487211913 is a wasteful number, since it uses less digits than its factorization.
13487211913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 352996.
The product of its digits is 36288, while the sum is 40.
The spelling of 13487211913 in words is "thirteen billion, four hundred eighty-seven million, two hundred eleven thousand, nine hundred thirteen".
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