Base | Representation |
---|---|
bin | 1100011001100010001… |
… | …0011010000101000100 |
3 | 202100211012200220212210 |
4 | 3012120202122011010 |
5 | 11442222203212202 |
6 | 241505010143420 |
7 | 21250435556244 |
oct | 3063042320504 |
9 | 670735626783 |
10 | 213012554052 |
11 | 8237a040701 |
12 | 35349581b70 |
13 | 171191980bc |
14 | a44a397b24 |
15 | 581aa55c6c |
hex | 319889a144 |
213012554052 has 24 divisors (see below), whose sum is σ = 497541193632. Its totient is φ = 70931056000.
The previous prime is 213012554033. The next prime is 213012554059. The reversal of 213012554052 is 250455210312.
It is not an unprimeable number, because it can be changed into a prime (213012554059) 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, 9128949 + ... + 9152252.
It is an arithmetic number, because the mean of its divisors is an integer number (20730883068).
Almost surely, 2213012554052 is an apocalyptic number.
It is an amenable number.
213012554052 is an abundant number, since it is smaller than the sum of its proper divisors (284528639580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213012554052 is a wasteful number, since it uses less digits than its factorization.
213012554052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18282179 (or 18282177 counting only the distinct ones).
The product of its (nonzero) digits is 12000, while the sum is 30.
Adding to 213012554052 its reverse (250455210312), we get a palindrome (463467764364).
The spelling of 213012554052 in words is "two hundred thirteen billion, twelve million, five hundred fifty-four thousand, fifty-two".
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