Base | Representation |
---|---|
bin | 11000011101011000… |
… | …00111011110000111 |
3 | 1020220010221120211120 |
4 | 30032230013132013 |
5 | 203343111112342 |
6 | 10011002205023 |
7 | 643256420652 |
oct | 141654073607 |
9 | 36803846746 |
10 | 13131347847 |
11 | 5629337aa2 |
12 | 26657b3773 |
13 | 131366cb17 |
14 | 8c7d9a899 |
15 | 51cc49aec |
hex | 30eb07787 |
13131347847 has 16 divisors (see below), whose sum is σ = 17781296640. Its totient is φ = 8618455872.
The previous prime is 13131347837. The next prime is 13131347863. The reversal of 13131347847 is 74874313131.
It is not a de Polignac number, because 13131347847 - 226 = 13064238983 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13131347799 and 13131347808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13131347837) 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, 2403 + ... + 162075.
It is an arithmetic number, because the mean of its divisors is an integer number (1111331040).
Almost surely, 213131347847 is an apocalyptic number.
13131347847 is a deficient number, since it is larger than the sum of its proper divisors (4649948793).
13131347847 is a wasteful number, since it uses less digits than its factorization.
13131347847 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 160102.
The product of its digits is 169344, while the sum is 42.
The spelling of 13131347847 in words is "thirteen billion, one hundred thirty-one million, three hundred forty-seven thousand, eight hundred forty-seven".
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