Base | Representation |
---|---|
bin | 111101011101111… |
… | …000100101001111 |
3 | 2122212110121222100 |
4 | 331131320211033 |
5 | 4102444302421 |
6 | 250155050143 |
7 | 34361300412 |
oct | 7535704517 |
9 | 2585417870 |
10 | 1031244111 |
11 | 48a123a67 |
12 | 249440953 |
13 | 135859521 |
14 | 9ad61b79 |
15 | 60803c26 |
hex | 3d77894f |
1031244111 has 12 divisors (see below), whose sum is σ = 1495374192. Its totient is φ = 684819456.
The previous prime is 1031244083. The next prime is 1031244119. The reversal of 1031244111 is 1114421301.
It is not a de Polignac number, because 1031244111 - 25 = 1031244079 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031244119) 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 11 ways as a sum of consecutive naturals, for example, 220611 + ... + 225236.
It is an arithmetic number, because the mean of its divisors is an integer number (124614516).
Almost surely, 21031244111 is an apocalyptic number.
1031244111 is a deficient number, since it is larger than the sum of its proper divisors (464130081).
1031244111 is a wasteful number, since it uses less digits than its factorization.
1031244111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 446110 (or 446107 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
The square root of 1031244111 is about 32112.9897549263. The cubic root of 1031244111 is about 1010.3080820115.
Adding to 1031244111 its reverse (1114421301), we get a palindrome (2145665412).
The spelling of 1031244111 in words is "one billion, thirty-one million, two hundred forty-four thousand, one hundred eleven".
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