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211002312211 = 1812917399643
BaseRepresentation
bin1100010010000010110…
…1111100011000010011
3202011122010002001111021
43010200231330120103
511424113042442321
6240533315500311
721146556026665
oct3044055743023
9664563061437
10211002312211
1181538339209
1234a882b7697
1316b888760a2
14a2d93d4535
15574e31d941
hex3120b7c613

211002312211 has 8 divisors (see below), whose sum is σ = 212241336944. Its totient is φ = 209764092960.

The previous prime is 211002312181. The next prime is 211002312217. The reversal of 211002312211 is 112213200112.

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 211002312211 - 223 = 210993923603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211002312217) 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, 328156 + ... + 727798.

It is an arithmetic number, because the mean of its divisors is an integer number (26530167118).

Almost surely, 2211002312211 is an apocalyptic number.

211002312211 is a deficient number, since it is larger than the sum of its proper divisors (1239024733).

211002312211 is a wasteful number, since it uses less digits than its factorization.

211002312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402741.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211002312211 its reverse (112213200112), we get a palindrome (323215512323).

The spelling of 211002312211 in words is "two hundred eleven billion, two million, three hundred twelve thousand, two hundred eleven".

Divisors: 1 181 2917 399643 527977 72335383 1165758631 211002312211