Base | Representation |
---|---|
bin | 1110011100111… |
… | …01011111101101 |
3 | 22110010012010200 |
4 | 13032131133231 |
5 | 222013400331 |
6 | 20010224113 |
7 | 3001310100 |
oct | 716353755 |
9 | 273105120 |
10 | 121231341 |
11 | 624829a0 |
12 | 34725039 |
13 | 1c16852a |
14 | 1215a737 |
15 | a99a5e6 |
hex | 739d7ed |
121231341 has 72 divisors (see below), whose sum is σ = 226141344. Its totient is φ = 61871040.
The previous prime is 121231303. The next prime is 121231379. The reversal of 121231341 is 143132121.
It is an interprime number because it is at equal distance from previous prime (121231303) and next prime (121231379).
It is not a de Polignac number, because 121231341 - 214 = 121214957 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121231391) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 324831 + ... + 325203.
It is an arithmetic number, because the mean of its divisors is an integer number (3140852).
Almost surely, 2121231341 is an apocalyptic number.
121231341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
121231341 is a deficient number, since it is larger than the sum of its proper divisors (104910003).
121231341 is a wasteful number, since it uses less digits than its factorization.
121231341 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 471 (or 461 counting only the distinct ones).
The product of its digits is 144, while the sum is 18.
The square root of 121231341 is about 11010.5104786290. The cubic root of 121231341 is about 494.9237593017.
Adding to 121231341 its reverse (143132121), we get a palindrome (264363462).
The spelling of 121231341 in words is "one hundred twenty-one million, two hundred thirty-one thousand, three hundred forty-one".
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