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205528319 = 1398211801
BaseRepresentation
bin11000100000000…
…01110011111111
3112022201220211222
430100001303333
5410103401234
632221103555
75043650633
oct1420016377
9468656758
10205528319
11a6019517
12589b7bbb
13337716b9
141d420dc3
151309c42e
hexc401cff

205528319 has 8 divisors (see below), whose sum is σ = 207374160. Its totient is φ = 203688000.

The previous prime is 205528313. The next prime is 205528373. The reversal of 205528319 is 913825502.

205528319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205528319 - 216 = 205462783 is a prime.

It is a super-2 number, since 2×2055283192 = 84483779821931522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205528313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113219 + ... + 115019.

It is an arithmetic number, because the mean of its divisors is an integer number (25921770).

Almost surely, 2205528319 is an apocalyptic number.

205528319 is a deficient number, since it is larger than the sum of its proper divisors (1845841).

205528319 is a wasteful number, since it uses less digits than its factorization.

205528319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 205528319 is about 14336.2588913566. The cubic root of 205528319 is about 590.1429501365.

The spelling of 205528319 in words is "two hundred five million, five hundred twenty-eight thousand, three hundred nineteen".

Divisors: 1 139 821 1801 114119 250339 1478621 205528319