Base | Representation |
---|---|
bin | 1111101001010… |
… | …00010011111001 |
3 | 100010221112110211 |
4 | 13310220103321 |
5 | 232044041423 |
6 | 21004511121 |
7 | 3152332330 |
oct | 764502371 |
9 | 303845424 |
10 | 131237113 |
11 | 68097427 |
12 | 37b4b4a1 |
13 | 2125c8c7 |
14 | 13602d17 |
15 | b7c510d |
hex | 7d284f9 |
131237113 has 16 divisors (see below), whose sum is σ = 157330944. Its totient is φ = 107110080.
The previous prime is 131237111. The next prime is 131237131. The reversal of 131237113 is 311732131.
It is not a de Polignac number, because 131237113 - 21 = 131237111 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131237111) 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, 6783 + ... + 17563.
It is an arithmetic number, because the mean of its divisors is an integer number (9833184).
Almost surely, 2131237113 is an apocalyptic number.
It is an amenable number.
131237113 is a deficient number, since it is larger than the sum of its proper divisors (26093831).
131237113 is a wasteful number, since it uses less digits than its factorization.
131237113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10872.
The product of its digits is 378, while the sum is 22.
The square root of 131237113 is about 11455.8767887927. The cubic root of 131237113 is about 508.1815451013.
Adding to 131237113 its reverse (311732131), we get a palindrome (442969244).
The spelling of 131237113 in words is "one hundred thirty-one million, two hundred thirty-seven thousand, one hundred thirteen".
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