Base | Representation |
---|---|
bin | 1111101000010… |
… | …00000101011001 |
3 | 100010200211101221 |
4 | 13310020011121 |
5 | 232030330423 |
6 | 21002012041 |
7 | 3151242436 |
oct | 764100531 |
9 | 303624357 |
10 | 131105113 |
11 | 68007237 |
12 | 37aa7021 |
13 | 212147b9 |
14 | 135aab8d |
15 | b79ae5d |
hex | 7d08159 |
131105113 has 8 divisors (see below), whose sum is σ = 131908608. Its totient is φ = 130304784.
The previous prime is 131105101. The next prime is 131105119. The reversal of 131105113 is 311501131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131105113 - 29 = 131104601 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131105119) 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, 178495 + ... + 179227.
It is an arithmetic number, because the mean of its divisors is an integer number (16488576).
Almost surely, 2131105113 is an apocalyptic number.
It is an amenable number.
131105113 is a deficient number, since it is larger than the sum of its proper divisors (803495).
131105113 is an equidigital number, since it uses as much as digits as its factorization.
131105113 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1583.
The product of its (nonzero) digits is 45, while the sum is 16.
The square root of 131105113 is about 11450.1141042349. The cubic root of 131105113 is about 508.0111094043.
Adding to 131105113 its reverse (311501131), we get a palindrome (442606244).
The spelling of 131105113 in words is "one hundred thirty-one million, one hundred five thousand, one hundred thirteen".
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