206313030 has 144 divisors (see below), whose sum is σ = 680878224. Its totient is φ = 42860160.

The previous prime is 206312959. The next prime is 206313067. The reversal of 206313030 is 30313602.

It is a happy number.

206313030 is a `hidden beast` number, since 2 + 0 + 631 + 3 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 206312994 and 206313012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 46384 + ... + 50636.

It is an arithmetic number, because the mean of its divisors is an integer number (4728321).

Almost surely, 2^206313030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206313030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340439112).

206313030 is an abundant number, since it is smaller than the sum of its proper divisors (474565194).

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

206313030 is a wasteful number, since it uses less digits than its factorization.

206313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291 (or 4281 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 206313030 is about 14363.6008716477. The cubic root of 206313030 is about 590.8930552794.

Adding to 206313030 its reverse (30313602), we get a palindrome (236626632).

It can be divided in two parts, 206 and 313030, that added together give a triangular number (313236 = T₇₉₁).

The spelling of 206313030 in words is "two hundred six million, three hundred thirteen thousand, thirty".