Base | Representation |
---|---|
bin | 100100000111111… |
… | …1010001111111110 |
3 | 10010110211121011220 |
4 | 1020033322033332 |
5 | 4440301132202 |
6 | 320140054210 |
7 | 42015636405 |
oct | 11017721776 |
9 | 3113747156 |
10 | 1212130302 |
11 | 572241489 |
12 | 299b34366 |
13 | 164180886 |
14 | b6daa63c |
15 | 71634abc |
hex | 483fa3fe |
1212130302 has 16 divisors (see below), whose sum is σ = 2424702720. Its totient is φ = 403969752.
The previous prime is 1212130301. The next prime is 1212130319. The reversal of 1212130302 is 2030312121.
It is a super-2 number, since 2×12121303022 = 2938519738053222408, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212130301) 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 7 ways as a sum of consecutive naturals, for example, 25149 + ... + 55287.
It is an arithmetic number, because the mean of its divisors is an integer number (151543920).
Almost surely, 21212130302 is an apocalyptic number.
1212130302 is an abundant number, since it is smaller than the sum of its proper divisors (1212572418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1212130302 is a wasteful number, since it uses less digits than its factorization.
1212130302 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 36847.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1212130302 is about 34815.6617343402. The cubic root of 1212130302 is about 1066.2272295141.
Adding to 1212130302 its reverse (2030312121), we get a palindrome (3242442423).
The spelling of 1212130302 in words is "one billion, two hundred twelve million, one hundred thirty thousand, three hundred two".
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