Base | Representation |
---|---|
bin | 11001001010110… |
… | …01101010011000 |
3 | 112201021120022212 |
4 | 30211121222120 |
5 | 413022143112 |
6 | 32541134252 |
7 | 5142404240 |
oct | 1445315230 |
9 | 481246285 |
10 | 211131032 |
11 | a91a5962 |
12 | 5a85a388 |
13 | 34983908 |
14 | 2007cb20 |
15 | 13807522 |
hex | c959a98 |
211131032 has 32 divisors (see below), whose sum is σ = 462950400. Its totient is φ = 88379424.
The previous prime is 211131029. The next prime is 211131061. The reversal of 211131032 is 230131112.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a junction number, because it is equal to n+sod(n) for n = 211130998 and 211131016.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41432 + ... + 46247.
It is an arithmetic number, because the mean of its divisors is an integer number (14467200).
Almost surely, 2211131032 is an apocalyptic number.
It is an amenable number.
211131032 is an abundant number, since it is smaller than the sum of its proper divisors (251819368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211131032 is a wasteful number, since it uses less digits than its factorization.
211131032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87735 (or 87731 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 211131032 is about 14530.3486537660. The cubic root of 211131032 is about 595.4573909289.
Adding to 211131032 its reverse (230131112), we get a palindrome (441262144).
The spelling of 211131032 in words is "two hundred eleven million, one hundred thirty-one thousand, thirty-two".
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