Base | Representation |
---|---|
bin | 1111101001111… |
… | …00010111010111 |
3 | 100011002201011010 |
4 | 13310330113113 |
5 | 232104204010 |
6 | 21010343303 |
7 | 3153123654 |
oct | 764742727 |
9 | 304081133 |
10 | 131319255 |
11 | 68143111 |
12 | 37b8ab33 |
13 | 2128b102 |
14 | 13624c2b |
15 | b7de620 |
hex | 7d3c5d7 |
131319255 has 16 divisors (see below), whose sum is σ = 216889344. Its totient is φ = 67777440.
The previous prime is 131319239. The next prime is 131319311. The reversal of 131319255 is 552913131.
It is not a de Polignac number, because 131319255 - 24 = 131319239 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140739 + ... + 141668.
It is an arithmetic number, because the mean of its divisors is an integer number (13555584).
Almost surely, 2131319255 is an apocalyptic number.
131319255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131319255 is a deficient number, since it is larger than the sum of its proper divisors (85570089).
131319255 is a wasteful number, since it uses less digits than its factorization.
131319255 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 282446.
The product of its digits is 4050, while the sum is 30.
The square root of 131319255 is about 11459.4613747767. The cubic root of 131319255 is about 508.2875474901.
The spelling of 131319255 in words is "one hundred thirty-one million, three hundred nineteen thousand, two hundred fifty-five".
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