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20201022023 = 7139719711617
BaseRepresentation
bin10010110100000100…
…110010001001000111
31221010211210020121212
4102310010302021013
5312332430201043
613140310002035
71313412565640
oct226404621107
957124706555
1020201022023
118626a4a926
123ab934631b
131b9c22c190
14d98c926c7
157d3728018
hex4b4132247

20201022023 has 32 divisors (see below), whose sum is σ = 25248795264. Its totient is φ = 15736799232.

The previous prime is 20201022007. The next prime is 20201022029. The reversal of 20201022023 is 32022010202.

It is not a de Polignac number, because 20201022023 - 24 = 20201022007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201021989 and 20201022007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201022029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1733111 + ... + 1744727.

It is an arithmetic number, because the mean of its divisors is an integer number (789024852).

Almost surely, 220201022023 is an apocalyptic number.

20201022023 is a deficient number, since it is larger than the sum of its proper divisors (5047773241).

20201022023 is a wasteful number, since it uses less digits than its factorization.

20201022023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11931.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20201022023 its reverse (32022010202), we get a palindrome (52223032225).

The spelling of 20201022023 in words is "twenty billion, two hundred one million, twenty-two thousand, twenty-three".

Divisors: 1 7 13 91 97 197 679 1261 1379 2561 8827 11617 17927 19109 81319 133763 151021 248417 1057147 1126849 1738919 2288549 7887943 14649037 16019843 29751137 102543259 208257959 221989253 1553924771 2885860289 20201022023