Base | Representation |
---|---|
bin | 100100001011111… |
… | …1110100000000100 |
3 | 10010121211000211011 |
4 | 1020113332200010 |
5 | 4441321313433 |
6 | 320253252004 |
7 | 42042624334 |
oct | 11027764004 |
9 | 3117730734 |
10 | 1214244868 |
11 | 573456161 |
12 | 29a794004 |
13 | 1647411b5 |
14 | b739b0c4 |
15 | 719013cd |
hex | 485fe804 |
1214244868 has 12 divisors (see below), whose sum is σ = 2125172700. Its totient is φ = 607052672.
The previous prime is 1214244847. The next prime is 1214244869. The reversal of 1214244868 is 8684424121.
It can be written as a sum of positive squares in 2 ways, for example, as 855445504 + 358799364 = 29248^2 + 18942^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 1214244868.
It is not an unprimeable number, because it can be changed into a prime (1214244869) 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 3 ways as a sum of consecutive naturals, for example, 57480 + ... + 75712.
It is an arithmetic number, because the mean of its divisors is an integer number (177097725).
Almost surely, 21214244868 is an apocalyptic number.
It is an amenable number.
1214244868 is a deficient number, since it is larger than the sum of its proper divisors (910927832).
1214244868 is a wasteful number, since it uses less digits than its factorization.
1214244868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34886 (or 34884 counting only the distinct ones).
The product of its digits is 98304, while the sum is 40.
The square root of 1214244868 is about 34846.0165298704. The cubic root of 1214244868 is about 1066.8468818336.
Adding to 1214244868 its reverse (8684424121), we get a palindrome (9898668989).
The spelling of 1214244868 in words is "one billion, two hundred fourteen million, two hundred forty-four thousand, eight hundred sixty-eight".
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