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20301001311 = 3257242310867
BaseRepresentation
bin10010111010000010…
…001011001001011111
31221101210220201102110
4102322002023021133
5313034024020221
613154240525103
71316035443513
oct227202131137
957353821373
1020301001311
118678427838
123b26920793
131bb6b66416
14da827a143
157dc3c6776
hex4ba08b25f

20301001311 has 16 divisors (see below), whose sum is σ = 27187041024. Its totient is φ = 13474535424.

The previous prime is 20301001243. The next prime is 20301001339. The reversal of 20301001311 is 11310010302.

It is not a de Polignac number, because 20301001311 - 27 = 20301001183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301001411) 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, 1862700 + ... + 1873566.

It is an arithmetic number, because the mean of its divisors is an integer number (1699190064).

Almost surely, 220301001311 is an apocalyptic number.

20301001311 is a deficient number, since it is larger than the sum of its proper divisors (6886039713).

20301001311 is a wasteful number, since it uses less digits than its factorization.

20301001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13550.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20301001311 its reverse (11310010302), we get a palindrome (31611011613).

The spelling of 20301001311 in words is "twenty billion, three hundred one million, one thousand, three hundred eleven".

Divisors: 1 3 257 771 2423 7269 10867 32601 622711 1868133 2792819 8378457 26330741 78992223 6767000437 20301001311