Base | Representation |
---|---|
bin | 10001101000110010000… |
… | …010101001100111100111 |
3 | 11021212102210002022000010 |
4 | 101220302002221213213 |
5 | 124324204201124111 |
6 | 2324443334021303 |
7 | 153364664563524 |
oct | 21506202514747 |
9 | 4255383068003 |
10 | 1212020333031 |
11 | 428018976222 |
12 | 176a931a7833 |
13 | 8a3a6a1b3c1 |
14 | 4293ab1a14b |
15 | 217da125aa6 |
hex | 11a320a99e7 |
1212020333031 has 16 divisors (see below), whose sum is σ = 1644954998400. Its totient is φ = 793575238368.
The previous prime is 1212020332981. The next prime is 1212020333057. The reversal of 1212020333031 is 1303330202121.
It is not a de Polignac number, because 1212020333031 - 218 = 1212020070887 is a prime.
It is a super-3 number, since 3×12120203330313 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 1212020332989 and 1212020333007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212020333431) 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 15 ways as a sum of consecutive naturals, for example, 3013581 + ... + 3392006.
It is an arithmetic number, because the mean of its divisors is an integer number (102809687400).
Almost surely, 21212020333031 is an apocalyptic number.
1212020333031 is a deficient number, since it is larger than the sum of its proper divisors (432934665369).
1212020333031 is a wasteful number, since it uses less digits than its factorization.
1212020333031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6406718.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 1212020333031 its reverse (1303330202121), we get a palindrome (2515350535152).
The spelling of 1212020333031 in words is "one trillion, two hundred twelve billion, twenty million, three hundred thirty-three thousand, thirty-one".
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