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2001304311 = 317238116481
BaseRepresentation
bin111011101001001…
…0111101011110111
312011110210210101220
41313102113223313
513044313214221
6530330521423
7100410543306
oct16722275367
95143723356
102001304311
11937758606
1247a296273
1325b812c46
1414db1843d
15baa6e0c6
hex77497af7

2001304311 has 16 divisors (see below), whose sum is σ = 2826728928. Its totient is φ = 1255116800.

The previous prime is 2001304307. The next prime is 2001304351. The reversal of 2001304311 is 1134031002.

It is not a de Polignac number, because 2001304311 - 22 = 2001304307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001304301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113191 + ... + 129671.

It is an arithmetic number, because the mean of its divisors is an integer number (176670558).

Almost surely, 22001304311 is an apocalyptic number.

2001304311 is a deficient number, since it is larger than the sum of its proper divisors (825424617).

2001304311 is a wasteful number, since it uses less digits than its factorization.

2001304311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18882.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2001304311 is about 44735.9398135325. The cubic root of 2001304311 is about 1260.1948785246.

Adding to 2001304311 its reverse (1134031002), we get a palindrome (3135335313).

The spelling of 2001304311 in words is "two billion, one million, three hundred four thousand, three hundred eleven".

Divisors: 1 3 17 51 2381 7143 16481 40477 49443 121431 280177 840531 39241261 117723783 667101437 2001304311