Base | Representation |
---|---|
bin | 1111101001101… |
… | …00011011010101 |
3 | 100011001001112220 |
4 | 13310310123111 |
5 | 232102133431 |
6 | 21005532553 |
7 | 3152630115 |
oct | 764643325 |
9 | 304031486 |
10 | 131286741 |
11 | 68120743 |
12 | 37b74159 |
13 | 21279381 |
14 | 13617045 |
15 | b7d4b96 |
hex | 7d346d5 |
131286741 has 16 divisors (see below), whose sum is σ = 184161600. Its totient is φ = 83070848.
The previous prime is 131286719. The next prime is 131286761. The reversal of 131286741 is 147682131.
It is not a de Polignac number, because 131286741 - 27 = 131286613 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131286761) 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, 7656 + ... + 17921.
It is an arithmetic number, because the mean of its divisors is an integer number (11510100).
Almost surely, 2131286741 is an apocalyptic number.
It is an amenable number.
131286741 is a deficient number, since it is larger than the sum of its proper divisors (52874859).
131286741 is a wasteful number, since it uses less digits than its factorization.
131286741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25668.
The product of its digits is 8064, while the sum is 33.
The square root of 131286741 is about 11458.0426338882. The cubic root of 131286741 is about 508.2455941973.
The spelling of 131286741 in words is "one hundred thirty-one million, two hundred eighty-six thousand, seven hundred forty-one".
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