Base | Representation |
---|---|
bin | 1111101000010… |
… | …10000010101010 |
3 | 100010201020101212 |
4 | 13310022002222 |
5 | 232031110010 |
6 | 21002113122 |
7 | 3151305011 |
oct | 764120252 |
9 | 303636355 |
10 | 131113130 |
11 | 68012265 |
12 | 37aab7a2 |
13 | 21218345 |
14 | 135ada78 |
15 | b79d505 |
hex | 7d0a0aa |
131113130 has 16 divisors (see below), whose sum is σ = 236588040. Its totient is φ = 52315392.
The previous prime is 131113123. The next prime is 131113139. The reversal of 131113130 is 31311131.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 128165041 + 2948089 = 11321^2 + 1717^2 .
It is not an unprimeable number, because it can be changed into a prime (131113139) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11939 + ... + 20118.
Almost surely, 2131113130 is an apocalyptic number.
131113130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131113130 is a deficient number, since it is larger than the sum of its proper divisors (105474910).
131113130 is a wasteful number, since it uses less digits than its factorization.
131113130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32473.
The product of its (nonzero) digits is 27, while the sum is 14.
The square root of 131113130 is about 11450.4641827308. The cubic root of 131113130 is about 508.0214640527.
Adding to 131113130 its reverse (31311131), we get a palindrome (162424261).
It can be divided in two parts, 1311 and 13130, that added together give a palindrome (14441).
The spelling of 131113130 in words is "one hundred thirty-one million, one hundred thirteen thousand, one hundred thirty".
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