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205253007 = 374392083
BaseRepresentation
bin11000011101111…
…10100110001111
3112022012221012020
430032332212033
5410021044012
632211141223
75041423161
oct1416764617
9468187166
10205253007
11a5950693
12588a4813
13336a62ab
141d38c931
1513045a8c
hexc3be98f

205253007 has 8 divisors (see below), whose sum is σ = 274041984. Its totient is φ = 136649688.

The previous prime is 205252987. The next prime is 205253051. The reversal of 205253007 is 700352502.

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

It is not a de Polignac number, because 205253007 - 211 = 205250959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205253407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43813 + ... + 48270.

It is an arithmetic number, because the mean of its divisors is an integer number (34255248).

Almost surely, 2205253007 is an apocalyptic number.

205253007 is a deficient number, since it is larger than the sum of its proper divisors (68788977).

205253007 is an equidigital number, since it uses as much as digits as its factorization.

205253007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92829.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 205253007 is about 14326.6537265336. The cubic root of 205253007 is about 589.8793270392.

It can be divided in two parts, 20525 and 3007, that added together give a palindrome (23532).

The spelling of 205253007 in words is "two hundred five million, two hundred fifty-three thousand, seven".

Divisors: 1 3 743 2229 92083 276249 68417669 205253007