Base | Representation |
---|---|
bin | 1111100111100… |
… | …00111100011011 |
3 | 100010112000101111 |
4 | 13303300330123 |
5 | 232014312311 |
6 | 21000001151 |
7 | 3150366214 |
oct | 763607433 |
9 | 303460344 |
10 | 131010331 |
11 | 67a52001 |
12 | 37a601b7 |
13 | 211b060a |
14 | 1358440b |
15 | b77cd21 |
hex | 7cf0f1b |
131010331 has 8 divisors (see below), whose sum is σ = 132168960. Its totient is φ = 129856488.
The previous prime is 131010317. The next prime is 131010337. The reversal of 131010331 is 133010131.
It is a happy number.
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 131010331 - 29 = 131009819 is a prime.
It is a super-2 number, since 2×1310103312 = 34327413657459122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131010337) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72420 + ... + 74206.
It is an arithmetic number, because the mean of its divisors is an integer number (16521120).
Almost surely, 2131010331 is an apocalyptic number.
131010331 is a deficient number, since it is larger than the sum of its proper divisors (1158629).
131010331 is a wasteful number, since it uses less digits than its factorization.
131010331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2393.
The product of its (nonzero) digits is 27, while the sum is 13.
The square root of 131010331 is about 11445.9744451925. The cubic root of 131010331 is about 507.8886582506. Note that the first 3 decimals are identical.
Adding to 131010331 its reverse (133010131), we get a palindrome (264020462).
The spelling of 131010331 in words is "one hundred thirty-one million, ten thousand, three hundred thirty-one".
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