Base | Representation |
---|---|
bin | 1100010010111001101… |
… | …1000001001001011111 |
3 | 202012020010201012012011 |
4 | 3010232123001021133 |
5 | 11430100422411111 |
6 | 241012211452051 |
7 | 21155350230112 |
oct | 3045633011137 |
9 | 665203635164 |
10 | 211232232031 |
11 | 816460a7397 |
12 | 34b312b7027 |
13 | 16bc43a7a12 |
14 | a31bb64579 |
15 | 57645d8021 |
hex | 312e6c125f |
211232232031 has 8 divisors (see below), whose sum is σ = 211350824640. Its totient is φ = 211113679392.
The previous prime is 211232232017. The next prime is 211232232041. The reversal of 211232232031 is 130232232112.
211232232031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 211232232031 - 29 = 211232231519 is a prime.
It is a super-2 number, since 2×2112322320312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 211232231993 and 211232232011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211232232041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19457601 + ... + 19468453.
It is an arithmetic number, because the mean of its divisors is an integer number (26418853080).
Almost surely, 2211232232031 is an apocalyptic number.
211232232031 is a deficient number, since it is larger than the sum of its proper divisors (118592609).
211232232031 is a wasteful number, since it uses less digits than its factorization.
211232232031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19985.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 211232232031 its reverse (130232232112), we get a palindrome (341464464143).
The spelling of 211232232031 in words is "two hundred eleven billion, two hundred thirty-two million, two hundred thirty-two thousand, thirty-one".
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