Base | Representation |
---|---|
bin | 1111101001101… |
… | …00110001100011 |
3 | 100011001010111120 |
4 | 13310310301203 |
5 | 232102210123 |
6 | 21005543323 |
7 | 3152634216 |
oct | 764646143 |
9 | 304033446 |
10 | 131288163 |
11 | 68121816 |
12 | 37b74b43 |
13 | 21279c06 |
14 | 1361777d |
15 | b7d52e3 |
hex | 7d34c63 |
131288163 has 16 divisors (see below), whose sum is σ = 183275520. Its totient is φ = 83438784.
The previous prime is 131288153. The next prime is 131288189. The reversal of 131288163 is 361882131.
It is not a de Polignac number, because 131288163 - 24 = 131288147 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131288153) 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, 18558 + ... + 24636.
It is an arithmetic number, because the mean of its divisors is an integer number (11454720).
Almost surely, 2131288163 is an apocalyptic number.
131288163 is a deficient number, since it is larger than the sum of its proper divisors (51987357).
131288163 is a wasteful number, since it uses less digits than its factorization.
131288163 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6418.
The product of its digits is 6912, while the sum is 33.
The square root of 131288163 is about 11458.1046862036. The cubic root of 131288163 is about 508.2474291697.
The spelling of 131288163 in words is "one hundred thirty-one million, two hundred eighty-eight thousand, one hundred sixty-three".
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