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3033212221 = 131491565933
BaseRepresentation
bin1011010011001011…
…0010010100111101
321211101112010221101
42310302302110331
522203000242341
61220552133101
7135110610214
oct26462622475
97741463841
103033212221
111317195266
12707997191
13394542640
1420abb007b
1512b454831
hexb4cb253d

3033212221 has 8 divisors (see below), whose sum is σ = 3288461400. Its totient is φ = 2781095232.

The previous prime is 3033212219. The next prime is 3033212249. The reversal of 3033212221 is 1222123303.

It can be written as a sum of positive squares in 4 ways, for example, as 338044996 + 2695167225 = 18386^2 + 51915^2 .

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 3033212221 - 21 = 3033212219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3033212291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781030 + ... + 784903.

It is an arithmetic number, because the mean of its divisors is an integer number (411057675).

Almost surely, 23033212221 is an apocalyptic number.

It is an amenable number.

3033212221 is a deficient number, since it is larger than the sum of its proper divisors (255249179).

3033212221 is a wasteful number, since it uses less digits than its factorization.

3033212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566095.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3033212221 is about 55074.6059541056. The cubic root of 3033212221 is about 1447.5523066083.

Adding to 3033212221 its reverse (1222123303), we get a palindrome (4255335524).

The spelling of 3033212221 in words is "three billion, thirty-three million, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 13 149 1937 1565933 20357129 233324017 3033212221