Base | Representation |
---|---|
bin | 11101111000101101000011… |
… | …110001110110011100001101 |
3 | 122020101112200002010211020021 |
4 | 131320231003301312130031 |
5 | 114212003130423113010 |
6 | 1143314413500022141 |
7 | 36454141154620414 |
oct | 3570550361663415 |
9 | 566345602124207 |
10 | 131440021301005 |
11 | 3897644443229a |
12 | 128a9b59231951 |
13 | 584598278bc51 |
14 | 2465a33b1c47b |
15 | 102e0caeeb8da |
hex | 778b43c7670d |
131440021301005 has 8 divisors (see below), whose sum is σ = 157728171144600. Its totient is φ = 105151919985216.
The previous prime is 131440021300963. The next prime is 131440021301041. The reversal of 131440021301005 is 500103120044131.
It can be written as a sum of positive squares in 4 ways, for example, as 28341707158249 + 103098314142756 = 5323693^2 + 10153734^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131440021301005 - 213 = 131440021292813 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5880270 + ... + 17246959.
It is an arithmetic number, because the mean of its divisors is an integer number (19716021393075).
Almost surely, 2131440021301005 is an apocalyptic number.
It is an amenable number.
131440021301005 is a deficient number, since it is larger than the sum of its proper divisors (26288149843595).
131440021301005 is a wasteful number, since it uses less digits than its factorization.
131440021301005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24263903.
The product of its (nonzero) digits is 1440, while the sum is 25.
Adding to 131440021301005 its reverse (500103120044131), we get a palindrome (631543141345136).
The spelling of 131440021301005 in words is "one hundred thirty-one trillion, four hundred forty billion, twenty-one million, three hundred one thousand, five".
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