Base | Representation |
---|---|
bin | 1100010010110100011… |
… | …0101101111101000000 |
3 | 202012011121010110110002 |
4 | 3010231012231331000 |
5 | 11430024243231222 |
6 | 241010102055132 |
7 | 21154661340263 |
oct | 3045506557500 |
9 | 665147113402 |
10 | 211210133312 |
11 | 81634683292 |
12 | 34b25a1a4a8 |
13 | 16bbc93b259 |
14 | a318c50cda |
15 | 57626c0392 |
hex | 312d1adf40 |
211210133312 has 112 divisors (see below), whose sum is σ = 431789555520. Its totient is φ = 102467592192.
The previous prime is 211210133311. The next prime is 211210133327. The reversal of 211210133312 is 213331012112.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211210133311) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118191683 + ... + 118193469.
Almost surely, 2211210133312 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 211210133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215894777760).
211210133312 is an abundant number, since it is smaller than the sum of its proper divisors (220579422208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211210133312 is a wasteful number, since it uses less digits than its factorization.
211210133312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2248 (or 2238 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 20.
Adding to 211210133312 its reverse (213331012112), we get a palindrome (424541145424).
The spelling of 211210133312 in words is "two hundred eleven billion, two hundred ten million, one hundred thirty-three thousand, three hundred twelve".
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