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2010111111 = 32223345679
BaseRepresentation
bin111011111001111…
…1101110010000111
312012002101020001200
41313303331302013
513104042023421
6531243353543
7100545443151
oct16763756207
95162336050
102010111111
11941723258
124812228b3
132605a7678
14150d6bad1
15bb70d726
hex77cfdc87

2010111111 has 6 divisors (see below), whose sum is σ = 2903493840. Its totient is φ = 1340074068.

The previous prime is 2010111097. The next prime is 2010111119. The reversal of 2010111111 is 1111110102.

It is not a de Polignac number, because 2010111111 - 211 = 2010109063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 223345679 = 2010111111 / (2 + 0 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1).

2010111111 is a modest number, since divided by 111111 gives 2010 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2010111093 and 2010111102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010111119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111672831 + ... + 111672848.

It is an arithmetic number, because the mean of its divisors is an integer number (483915640).

Almost surely, 22010111111 is an apocalyptic number.

2010111111 is a deficient number, since it is larger than the sum of its proper divisors (893382729).

2010111111 is a wasteful number, since it uses less digits than its factorization.

2010111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223345685 (or 223345682 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 2010111111 is about 44834.2626904915. The cubic root of 2010111111 is about 1262.0406821893.

Adding to 2010111111 its reverse (1111110102), we get a palindrome (3121221213).

The spelling of 2010111111 in words is "two billion, ten million, one hundred eleven thousand, one hundred eleven".

Divisors: 1 3 9 223345679 670037037 2010111111