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2011112255 = 5402222451
BaseRepresentation
bin111011111011111…
…0010001100111111
312012011021002101002
41313313302030333
513104321043010
6531321040515
7100560113015
oct16767621477
95164232332
102011112255
11942247449
1248162613b
13260868269
1415114c8b5
15bb85a1a5
hex77df233f

2011112255 has 4 divisors (see below), whose sum is σ = 2413334712. Its totient is φ = 1608889800.

The previous prime is 2011112251. The next prime is 2011112269. The reversal of 2011112255 is 5522111102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2011112255 - 22 = 2011112251 is a prime.

It is a super-2 number, since 2×20111122552 = 8089145004422370050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011112251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201111221 + ... + 201111230.

It is an arithmetic number, because the mean of its divisors is an integer number (603333678).

Almost surely, 22011112255 is an apocalyptic number.

2011112255 is a deficient number, since it is larger than the sum of its proper divisors (402222457).

2011112255 is an equidigital number, since it uses as much as digits as its factorization.

2011112255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402222456.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2011112255 is about 44845.4262439326. The cubic root of 2011112255 is about 1262.2501689098.

Adding to 2011112255 its reverse (5522111102), we get a palindrome (7533223357).

The spelling of 2011112255 in words is "two billion, eleven million, one hundred twelve thousand, two hundred fifty-five".

Divisors: 1 5 402222451 2011112255