Base | Representation |
---|---|
bin | 1111101000011… |
… | …10001110111110 |
3 | 100010202002221212 |
4 | 13310032032332 |
5 | 232032132202 |
6 | 21002324422 |
7 | 3151406042 |
oct | 764161676 |
9 | 303662855 |
10 | 131130302 |
11 | 68024156 |
12 | 37ab9712 |
13 | 212230c4 |
14 | 135b6022 |
15 | b7a3652 |
hex | 7d0e3be |
131130302 has 4 divisors (see below), whose sum is σ = 196695456. Its totient is φ = 65565150.
The previous prime is 131130287. The next prime is 131130313. The reversal of 131130302 is 203031131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203031131 = 19 ⋅10685849.
It is a super-2 number, since 2×1311303022 = 34390312205222408, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
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 as a sum of consecutive naturals, namely, 32782574 + ... + 32782577.
It is an arithmetic number, because the mean of its divisors is an integer number (49173864).
Almost surely, 2131130302 is an apocalyptic number.
131130302 is a deficient number, since it is larger than the sum of its proper divisors (65565154).
131130302 is an equidigital number, since it uses as much as digits as its factorization.
131130302 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65565153.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 131130302 is about 11451.2139967778. The cubic root of 131130302 is about 508.0436417546.
Adding to 131130302 its reverse (203031131), we get a palindrome (334161433).
It can be divided in two parts, 1311 and 30302, that added together give a palindrome (31613).
The spelling of 131130302 in words is "one hundred thirty-one million, one hundred thirty thousand, three hundred two".
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