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206529344031 = 31723237206897
BaseRepresentation
bin1100000001011000011…
…0111011001000011111
3201202002101101201200010
43000112012323020133
511340433003002111
6234513412334303
720630663313303
oct3002606731037
9652071351603
10206529344031
117a652480a9a
123403a314393
1316624c7555a
149dd3323d03
15558b7beaa6
hex30161bb21f

206529344031 has 48 divisors (see below), whose sum is σ = 313038329184. Its totient is φ = 120602161152.

The previous prime is 206529343991. The next prime is 206529344033. The reversal of 206529344031 is 130443925602.

It is not a de Polignac number, because 206529344031 - 211 = 206529341983 is a prime.

It is a super-2 number, since 2×2065293440312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206529344033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 894775 + ... + 1101671.

It is an arithmetic number, because the mean of its divisors is an integer number (6521631858).

Almost surely, 2206529344031 is an apocalyptic number.

206529344031 is a deficient number, since it is larger than the sum of its proper divisors (106508985153).

206529344031 is a wasteful number, since it uses less digits than its factorization.

206529344031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207000 (or 206977 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 206529344031 in words is "two hundred six billion, five hundred twenty-nine million, three hundred forty-four thousand, thirty-one".

Divisors: 1 3 17 23 37 51 69 111 391 529 629 851 1173 1587 1887 2553 8993 14467 19573 26979 43401 58719 206897 332741 620691 998223 3517249 4758631 7655189 10551747 14275893 22965567 80896727 109448513 130138213 176069347 242690181 328345539 390414639 528208041 1860624721 2993178899 4049594981 5581874163 8979536697 12148784943 68843114677 206529344031