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2011131201 = 32332219049
BaseRepresentation
bin111011111011111…
…0110110101000001
312012011022001100210
41313313312311001
513104322144301
6531321304333
7100560222162
oct16767666501
95164261323
102011131201
1194225a702
124816350a9
13260873a81
14151155769
15bb860ad6
hex77df6d41

2011131201 has 16 divisors (see below), whose sum is σ = 2799273600. Its totient is φ = 1281920640.

The previous prime is 2011131193. The next prime is 2011131211. The reversal of 2011131201 is 1021311102.

It is not a de Polignac number, because 2011131201 - 23 = 2011131193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011131211) 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, 217725 + ... + 226773.

It is an arithmetic number, because the mean of its divisors is an integer number (174954600).

Almost surely, 22011131201 is an apocalyptic number.

It is an amenable number.

2011131201 is a deficient number, since it is larger than the sum of its proper divisors (788142399).

2011131201 is a wasteful number, since it uses less digits than its factorization.

2011131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2011131201 is about 44845.6374801385. The cubic root of 2011131201 is about 1262.2541326396.

Adding to 2011131201 its reverse (1021311102), we get a palindrome (3032442303).

The spelling of 2011131201 in words is "two billion, eleven million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 3 23 69 3221 9049 9663 27147 74083 208127 222249 624381 29146829 87440487 670377067 2011131201