Base | Representation |
---|---|
bin | 1111101001110… |
… | …00001101001111 |
3 | 100011001211210022 |
4 | 13310320031033 |
5 | 232103132343 |
6 | 21010132355 |
7 | 3153023213 |
oct | 764701517 |
9 | 304054708 |
10 | 131302223 |
11 | 68131338 |
12 | 37b810bb |
13 | 21283430 |
14 | 1361c943 |
15 | b7d9568 |
hex | 7d3834f |
131302223 has 8 divisors (see below), whose sum is σ = 141546048. Its totient is φ = 121078944.
The previous prime is 131302211. The next prime is 131302229. The reversal of 131302223 is 322203131.
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 131302223 - 210 = 131301199 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131302229) 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, 9761 + ... + 18917.
It is an arithmetic number, because the mean of its divisors is an integer number (17693256).
Almost surely, 2131302223 is an apocalyptic number.
131302223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
131302223 is a deficient number, since it is larger than the sum of its proper divisors (10243825).
131302223 is a wasteful number, since it uses less digits than its factorization.
131302223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10273.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 131302223 is about 11458.7182092937. The cubic root of 131302223 is about 508.2655717136.
Adding to 131302223 its reverse (322203131), we get a palindrome (453505354).
The spelling of 131302223 in words is "one hundred thirty-one million, three hundred two thousand, two hundred twenty-three".
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