Base | Representation |
---|---|
bin | 1100010111010000011… |
… | …0110001100101010000 |
3 | 202022020121120112210220 |
4 | 3011310012301211100 |
5 | 11434444220034022 |
6 | 241324213353040 |
7 | 21226334343360 |
oct | 3056406614520 |
9 | 668217515726 |
10 | 212401330512 |
11 | 82096017388 |
12 | 351b8938780 |
13 | 1704c66ca77 |
14 | a3cd12c9a0 |
15 | 57d206c85c |
hex | 31741b1950 |
212401330512 has 40 divisors (see below), whose sum is σ = 627089643456. Its totient is φ = 60686094336.
The previous prime is 212401330507. The next prime is 212401330517. The reversal of 212401330512 is 215033104212.
It is an interprime number because it is at equal distance from previous prime (212401330507) and next prime (212401330517).
It is a super-3 number, since 3×2124013305123 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212401330517) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316073073 + ... + 316073744.
Almost surely, 2212401330512 is an apocalyptic number.
It is an amenable number.
212401330512 is an abundant number, since it is smaller than the sum of its proper divisors (414688312944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212401330512 is a wasteful number, since it uses less digits than its factorization.
212401330512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 632146835 (or 632146829 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
Adding to 212401330512 its reverse (215033104212), we get a palindrome (427434434724).
The spelling of 212401330512 in words is "two hundred twelve billion, four hundred one million, three hundred thirty thousand, five hundred twelve".
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