Base | Representation |
---|---|
bin | 111101011101000… |
… | …000001010010100 |
3 | 2122212000212222010 |
4 | 331131000022110 |
5 | 4102414404022 |
6 | 250150104220 |
7 | 34356315561 |
oct | 7535001224 |
9 | 2585025863 |
10 | 1031013012 |
11 | 489a86377 |
12 | 24934b070 |
13 | 1357a8293 |
14 | 9ad01868 |
15 | 607aa50c |
hex | 3d740294 |
1031013012 has 24 divisors (see below), whose sum is σ = 2410732800. Its totient is φ = 342951616.
The previous prime is 1031013007. The next prime is 1031013013. The reversal of 1031013012 is 2103101301.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031013013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83937 + ... + 95432.
It is an arithmetic number, because the mean of its divisors is an integer number (100447200).
Almost surely, 21031013012 is an apocalyptic number.
1031013012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1031013012 is an abundant number, since it is smaller than the sum of its proper divisors (1379719788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031013012 is a wasteful number, since it uses less digits than its factorization.
1031013012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 179855 (or 179853 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 1031013012 is about 32109.3913364922. The cubic root of 1031013012 is about 1010.2326072757.
Adding to 1031013012 its reverse (2103101301), we get a palindrome (3134114313).
It can be divided in two parts, 103101301 and 2, that multiplied together give a palindrome (206202602).
The spelling of 1031013012 in words is "one billion, thirty-one million, thirteen thousand, twelve".
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