Base | Representation |
---|---|
bin | 11001001000000100… |
… | …10101100011000111 |
3 | 1021211002212022021212 |
4 | 30210002111203013 |
5 | 210111302303330 |
6 | 10110314402035 |
7 | 655165544321 |
oct | 144402254307 |
9 | 37732768255 |
10 | 13489494215 |
11 | 57a251672a |
12 | 274573031b |
13 | 136c918c52 |
14 | 91d788611 |
15 | 53e3e2295 |
hex | 3240958c7 |
13489494215 has 16 divisors (see below), whose sum is σ = 16425160128. Its totient is φ = 10634190336.
The previous prime is 13489494211. The next prime is 13489494223. The reversal of 13489494215 is 51249498431.
It is a cyclic number.
It is not a de Polignac number, because 13489494215 - 22 = 13489494211 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13489494211) 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, 28742 + ... + 166748.
It is an arithmetic number, because the mean of its divisors is an integer number (1026572508).
Almost surely, 213489494215 is an apocalyptic number.
13489494215 is a deficient number, since it is larger than the sum of its proper divisors (2935665913).
13489494215 is a wasteful number, since it uses less digits than its factorization.
13489494215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 138298.
The product of its digits is 1244160, while the sum is 50.
The spelling of 13489494215 in words is "thirteen billion, four hundred eighty-nine million, four hundred ninety-four thousand, two hundred fifteen".
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