Base | Representation |
---|---|
bin | 11101110101101010101101… |
… | …000011000011111101011001 |
3 | 122012122121000022012200122200 |
4 | 131311222231003003331121 |
5 | 114200043233002214001 |
6 | 1143034501555240413 |
7 | 36433102536206322 |
oct | 3565525503037531 |
9 | 565577008180580 |
10 | 131231334023001 |
11 | 388a59949535a3 |
12 | 128756182a9109 |
13 | 582c0a57230b4 |
14 | 24598b7d8b449 |
15 | 102896506e086 |
hex | 775aad0c3f59 |
131231334023001 has 48 divisors (see below), whose sum is σ = 195414449740224. Its totient is φ = 84814459817472.
The previous prime is 131231334022993. The next prime is 131231334023029. The reversal of 131231334023001 is 100320433132131.
131231334023001 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 3 + 13 + 340 + 2 + 300 + 1 = 666.
It is not a de Polignac number, because 131231334023001 - 23 = 131231334022993 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (131231334023051) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308729325 + ... + 309154101.
It is an arithmetic number, because the mean of its divisors is an integer number (4071134369588).
Almost surely, 2131231334023001 is an apocalyptic number.
It is an amenable number.
131231334023001 is a deficient number, since it is larger than the sum of its proper divisors (64183115717223).
131231334023001 is a wasteful number, since it uses less digits than its factorization.
131231334023001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 430790 (or 430787 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 27.
Adding to 131231334023001 its reverse (100320433132131), we get a palindrome (231551767155132).
The spelling of 131231334023001 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, three hundred thirty-four million, twenty-three thousand, one".
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