Base | Representation |
---|---|
bin | 1111101001001… |
… | …10101001100110 |
3 | 100010221012010212 |
4 | 13310212221212 |
5 | 232043332220 |
6 | 21004415422 |
7 | 3152303441 |
oct | 764465146 |
9 | 303835125 |
10 | 131230310 |
11 | 68092302 |
12 | 37b47572 |
13 | 21259793 |
14 | 13600658 |
15 | b7c30c5 |
hex | 7d26a66 |
131230310 has 32 divisors (see below), whose sum is σ = 252618912. Its totient is φ = 48908800.
The previous prime is 131230303. The next prime is 131230339. The reversal of 131230310 is 13032131.
It is a super-2 number, since 2×1312303102 = 34442788525392200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13349 + ... + 20991.
It is an arithmetic number, because the mean of its divisors is an integer number (7894341).
Almost surely, 2131230310 is an apocalyptic number.
131230310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131230310 is a deficient number, since it is larger than the sum of its proper divisors (121388602).
131230310 is a wasteful number, since it uses less digits than its factorization.
131230310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7768.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 131230310 is about 11455.5798631060. The cubic root of 131230310 is about 508.1727640009.
Adding to 131230310 its reverse (13032131), we get a palindrome (144262441).
The spelling of 131230310 in words is "one hundred thirty-one million, two hundred thirty thousand, three hundred ten".
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