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2011010211 = 32731920797
BaseRepresentation
bin111011111011101…
…1001010010100011
312012011001220101200
41313313121102203
513104304311321
6531314532243
7100556206350
oct16767312243
95164056350
102011010211
11942187811
12481597083
13260830992
14151123627
15bb839d26
hex77dd94a3

2011010211 has 12 divisors (see below), whose sum is σ = 3319762992. Its totient is φ = 1149148656.

The previous prime is 2011010203. The next prime is 2011010231. The reversal of 2011010211 is 1120101102.

It is a happy number.

It is not a de Polignac number, because 2011010211 - 23 = 2011010203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2011010193 and 2011010202.

It is not an unprimeable number, because it can be changed into a prime (2011010201) 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, 15960336 + ... + 15960461.

It is an arithmetic number, because the mean of its divisors is an integer number (276646916).

Almost surely, 22011010211 is an apocalyptic number.

2011010211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2011010211 is a deficient number, since it is larger than the sum of its proper divisors (1308752781).

2011010211 is a wasteful number, since it uses less digits than its factorization.

2011010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31920810 (or 31920807 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2011010211 is about 44844.2884992058. The cubic root of 2011010211 is about 1262.2288196565.

Adding to 2011010211 its reverse (1120101102), we get a palindrome (3131111313).

The spelling of 2011010211 in words is "two billion, eleven million, ten thousand, two hundred eleven".

Divisors: 1 3 7 9 21 63 31920797 95762391 223445579 287287173 670336737 2011010211