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2011412143 = 13219738581
BaseRepresentation
bin111011111100011…
…1011011010101111
312012011211022202001
41313320323122233
513104410142033
6531331313131
7100562502226
oct16770733257
95164738661
102011412143
11942431794
1248174b7a7
13260941900
141511c9cbd
15bb8b8e7d
hex77e3b6af

2011412143 has 24 divisors (see below), whose sum is σ = 2324348880. Its totient is φ = 1734670080.

The previous prime is 2011412113. The next prime is 2011412177. The reversal of 2011412143 is 3412141102.

It is not a de Polignac number, because 2011412143 - 29 = 2011411631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011412143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011412113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230113 + ... + 238693.

It is an arithmetic number, because the mean of its divisors is an integer number (96847870).

Almost surely, 22011412143 is an apocalyptic number.

2011412143 is a deficient number, since it is larger than the sum of its proper divisors (312936737).

2011412143 is a wasteful number, since it uses less digits than its factorization.

2011412143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2011412143 is about 44848.7696932703. The cubic root of 2011412143 is about 1262.3129061446.

Adding to 2011412143 its reverse (3412141102), we get a palindrome (5423553245).

The spelling of 2011412143 in words is "two billion, eleven million, four hundred twelve thousand, one hundred forty-three".

Divisors: 1 13 19 73 169 247 949 1387 3211 8581 12337 18031 111553 163039 234403 626413 1450189 2119507 8143369 11901847 27553591 105863797 154724011 2011412143