Base | Representation |
---|---|
bin | 11000101011100001… |
… | …10000111101100111 |
3 | 1021012102020002102211 |
4 | 30111300300331213 |
5 | 204114000210022 |
6 | 10030441344251 |
7 | 646230125455 |
oct | 142560607547 |
9 | 37172202384 |
10 | 13250006887 |
11 | 568a313317 |
12 | 2699498087 |
13 | 1332117580 |
14 | 8d9a479d5 |
15 | 528387e77 |
hex | 315c30f67 |
13250006887 has 32 divisors (see below), whose sum is σ = 14932721664. Its totient is φ = 11673936000.
The previous prime is 13250006857. The next prime is 13250006933. The reversal of 13250006887 is 78860005231.
It is a cyclic number.
It is not a de Polignac number, because 13250006887 - 211 = 13250004839 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 (13250006857) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14937558 + ... + 14938444.
It is an arithmetic number, because the mean of its divisors is an integer number (466647552).
Almost surely, 213250006887 is an apocalyptic number.
13250006887 is a deficient number, since it is larger than the sum of its proper divisors (1682714777).
13250006887 is a wasteful number, since it uses less digits than its factorization.
13250006887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1399.
The product of its (nonzero) digits is 80640, while the sum is 40.
The spelling of 13250006887 in words is "thirteen billion, two hundred fifty million, six thousand, eight hundred eighty-seven".
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