Base | Representation |
---|---|
bin | 100100011010110… |
… | …1011111011101011 |
3 | 10011011110201022100 |
4 | 1020311223323223 |
5 | 10000320030011 |
6 | 321132224443 |
7 | 42166052544 |
oct | 11065537353 |
9 | 3134421270 |
10 | 1222033131 |
11 | 577895640 |
12 | 2a130b123 |
13 | 16623a137 |
14 | b84274cb |
15 | 7243dd56 |
hex | 48d6beeb |
1222033131 has 12 divisors (see below), whose sum is σ = 1925628120. Its totient is φ = 740626080.
The previous prime is 1222033129. The next prime is 1222033139. The reversal of 1222033131 is 1313302221.
It is not a de Polignac number, because 1222033131 - 21 = 1222033129 is a prime.
It is a super-2 number, since 2×12220331312 = 2986729946523326322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1222033139) 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 11 ways as a sum of consecutive naturals, for example, 6171786 + ... + 6171983.
It is an arithmetic number, because the mean of its divisors is an integer number (160469010).
Almost surely, 21222033131 is an apocalyptic number.
1222033131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1222033131 is a deficient number, since it is larger than the sum of its proper divisors (703594989).
1222033131 is a wasteful number, since it uses less digits than its factorization.
1222033131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12343786 (or 12343783 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 1222033131 is about 34957.5904633028. The cubic root of 1222033131 is about 1069.1229692834.
Adding to 1222033131 its reverse (1313302221), we get a palindrome (2535335352).
The spelling of 1222033131 in words is "one billion, two hundred twenty-two million, thirty-three thousand, one hundred thirty-one".
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