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206828802 = 2341276721
BaseRepresentation
bin11000101001111…
…11010100000010
3112102011222210000
430110333110002
5410422010202
632305020430
75061005265
oct1424772402
9472158700
10206828802
11a68275a4
1259324716
1333b0860b
141d67ccdc
151325791c
hexc53f502

206828802 has 20 divisors (see below), whose sum is σ = 463450086. Its totient is φ = 68942880.

The previous prime is 206828801. The next prime is 206828819. The reversal of 206828802 is 208828602.

206828802 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 145660761 + 61168041 = 12069^2 + 7821^2 .

It is not an unprimeable number, because it can be changed into a prime (206828801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 638199 + ... + 638522.

Almost surely, 2206828802 is an apocalyptic number.

206828802 is an abundant number, since it is smaller than the sum of its proper divisors (256621284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206828802 is a wasteful number, since it uses less digits than its factorization.

206828802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276735 (or 1276726 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 206828802 is about 14381.5437975205. The cubic root of 206828802 is about 591.3850463063.

The spelling of 206828802 in words is "two hundred six million, eight hundred twenty-eight thousand, eight hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 1276721 2553442 3830163 7660326 11490489 22980978 34471467 68942934 103414401 206828802