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205230034 = 2102615017
BaseRepresentation
bin11000011101110…
…00111111010010
3112022011202200101
430032320333102
5410014330114
632210443014
75041266202
oct1416707722
9468152611
10205230034
11a59353a9
125889346a
13336989b9
141d384402
151303dd74
hexc3b8fd2

205230034 has 4 divisors (see below), whose sum is σ = 307845054. Its totient is φ = 102615016.

The previous prime is 205230023. The next prime is 205230037. The reversal of 205230034 is 430032502.

205230034 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430032502 = 2215016251.

It can be written as a sum of positive squares in only one way, i.e., 190522809 + 14707225 = 13803^2 + 3835^2 .

It is a junction number, because it is equal to n+sod(n) for n = 205229993 and 205230020.

It is not an unprimeable number, because it can be changed into a prime (205230037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51307507 + ... + 51307510.

Almost surely, 2205230034 is an apocalyptic number.

205230034 is a deficient number, since it is larger than the sum of its proper divisors (102615020).

205230034 is a wasteful number, since it uses less digits than its factorization.

205230034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102615019.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 205230034 is about 14325.8519467430. The cubic root of 205230034 is about 589.8573187488.

Adding to 205230034 its reverse (430032502), we get a palindrome (635262536).

The spelling of 205230034 in words is "two hundred five million, two hundred thirty thousand, thirty-four".

Divisors: 1 2 102615017 205230034