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2213211213 = 32419586903
BaseRepresentation
bin1000001111101010…
…1110110001001101
312201020112210000200
42003322232301031
514013040224323
61003340444113
7105562661553
oct20372566115
95636483020
102213211213
11a36333384
12519249639
132936a8a45
1416dd19bd3
15ce47b443
hex83eaec4d

2213211213 has 12 divisors (see below), whose sum is σ = 3204495840. Its totient is φ = 1471950216.

The previous prime is 2213211191. The next prime is 2213211223. The reversal of 2213211213 is 3121123122.

2213211213 is a `hidden beast` number, since 221 + 321 + 121 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2k-2213211213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213211223) 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 11 ways as a sum of consecutive naturals, for example, 289681 + ... + 297222.

It is an arithmetic number, because the mean of its divisors is an integer number (267041320).

Almost surely, 22213211213 is an apocalyptic number.

It is an amenable number.

2213211213 is a deficient number, since it is larger than the sum of its proper divisors (991284627).

2213211213 is a wasteful number, since it uses less digits than its factorization.

2213211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587328 (or 587325 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2213211213 is about 47044.7788070047. The cubic root of 2213211213 is about 1303.1896454792.

Adding to 2213211213 its reverse (3121123122), we get a palindrome (5334334335).

The spelling of 2213211213 in words is "two billion, two hundred thirteen million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 3 9 419 1257 3771 586903 1760709 5282127 245912357 737737071 2213211213