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20200811 = 17269899
BaseRepresentation
bin100110100001…
…1110101101011
31102000022022012
41031003311223
520132411221
62000550135
7333463331
oct115036553
942008265
1020200811
1110448194
12692234b
134253957
14297bb51
151b9065b
hex1343d6b

20200811 has 6 divisors (see below), whose sum is σ = 21459300. Its totient is φ = 19012256.

The previous prime is 20200801. The next prime is 20200813. The reversal of 20200811 is 11800202.

It is not a de Polignac number, because 20200811 - 210 = 20199787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34661 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (3576550).

Almost surely, 220200811 is an apocalyptic number.

20200811 is a deficient number, since it is larger than the sum of its proper divisors (1258489).

20200811 is an equidigital number, since it uses as much as digits as its factorization.

20200811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69933 (or 69916 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 20200811 is about 4494.5312325091. The cubic root of 20200811 is about 272.3472128380.

The spelling of 20200811 in words is "twenty million, two hundred thousand, eight hundred eleven".

Divisors: 1 17 289 69899 1188283 20200811