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2001110111 = 711131999111
BaseRepresentation
bin111011101000110…
…1000010001011111
312011110102221000022
41313101220101133
513044241010421
6530322422355
7100406104160
oct16721502137
95143387008
102001110111
11937635710
1247a2019bb
1325b775730
1414daa7767
15baa317ab
hex7746845f

2001110111 has 16 divisors (see below), whose sum is σ = 2686806528. Its totient is φ = 1439359200.

The previous prime is 2001110017. The next prime is 2001110119. The reversal of 2001110111 is 1110111002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2001110111 - 214 = 2001093727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001110119) 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 15 ways as a sum of consecutive naturals, for example, 998555 + ... + 1000556.

It is an arithmetic number, because the mean of its divisors is an integer number (167925408).

Almost surely, 22001110111 is an apocalyptic number.

2001110111 is a deficient number, since it is larger than the sum of its proper divisors (685696417).

2001110111 is a wasteful number, since it uses less digits than its factorization.

2001110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999142.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 2001110111 is about 44733.7692465100. The cubic root of 2001110111 is about 1260.1541154815.

Adding to 2001110111 its reverse (1110111002), we get a palindrome (3111221113).

The spelling of 2001110111 in words is "two billion, one million, one hundred ten thousand, one hundred eleven".

Divisors: 1 7 11 13 77 91 143 1001 1999111 13993777 21990221 25988443 153931547 181919101 285872873 2001110111