Base | Representation |
---|---|
bin | 1111100111101… |
… | …01001001101000 |
3 | 100010112220000121 |
4 | 13303311021220 |
5 | 232020340220 |
6 | 21000213024 |
7 | 3150500356 |
oct | 763651150 |
9 | 303486017 |
10 | 131027560 |
11 | 67a63a44 |
12 | 37a6a174 |
13 | 211b8401 |
14 | 1358a7d6 |
15 | b782eaa |
hex | 7cf5268 |
131027560 has 16 divisors (see below), whose sum is σ = 294812100. Its totient is φ = 52411008.
The previous prime is 131027537. The next prime is 131027569. The reversal of 131027560 is 65720131.
It can be written as a sum of positive squares in 2 ways, for example, as 119290084 + 11737476 = 10922^2 + 3426^2 .
It is not an unprimeable number, because it can be changed into a prime (131027569) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637805 + ... + 1637884.
Almost surely, 2131027560 is an apocalyptic number.
131027560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131027560 is an abundant number, since it is smaller than the sum of its proper divisors (163784540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131027560 is a wasteful number, since it uses less digits than its factorization.
131027560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3275700 (or 3275696 counting only the distinct ones).
The product of its (nonzero) digits is 1260, while the sum is 25.
The square root of 131027560 is about 11446.7270431333. The cubic root of 131027560 is about 507.9109212026.
Adding to 131027560 its reverse (65720131), we get a palindrome (196747691).
The spelling of 131027560 in words is "one hundred thirty-one million, twenty-seven thousand, five hundred sixty".
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