Base | Representation |
---|---|
bin | 1100010110111111101… |
… | …1101111111010011110 |
3 | 202022001201212012211220 |
4 | 3011233323233322132 |
5 | 11434323310044410 |
6 | 241313233154210 |
7 | 21224524352004 |
oct | 3055773577236 |
9 | 668051765756 |
10 | 212331331230 |
11 | 8205a556937 |
12 | 351993bb966 |
13 | 1703b001685 |
14 | a3c3b0aa74 |
15 | 57cad42070 |
hex | 316feefe9e |
212331331230 has 256 divisors, whose sum is σ = 553481994240. Its totient is φ = 52007155200.
The previous prime is 212331331213. The next prime is 212331331241. The reversal of 212331331230 is 32133133212.
It is a self number, because there is not a number n which added to its sum of digits gives 212331331230.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 321227100 + ... + 321227760.
It is an arithmetic number, because the mean of its divisors is an integer number (2162039040).
Almost surely, 2212331331230 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 212331331230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276740997120).
212331331230 is an abundant number, since it is smaller than the sum of its proper divisors (341150663010).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212331331230 is a wasteful number, since it uses less digits than its factorization.
212331331230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 927.
The product of its (nonzero) digits is 1944, while the sum is 24.
Adding to 212331331230 its reverse (32133133212), we get a palindrome (244464464442).
The spelling of 212331331230 in words is "two hundred twelve billion, three hundred thirty-one million, three hundred thirty-one thousand, two hundred thirty".
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