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206015234 = 2132177977
BaseRepresentation
bin11000100011110…
…00101100000010
3112100122122202212
430101320230002
5410214441414
632235342122
75051046335
oct1421705402
9470578685
10206015234
11a6321327
1258bb1942
13338b2209
141d50a61c
151314683e
hexc478b02

206015234 has 8 divisors (see below), whose sum is σ = 309260748. Its totient is φ = 102928320.

The previous prime is 206015221. The next prime is 206015261. The reversal of 206015234 is 432510602.

It can be written as a sum of positive squares in 2 ways, for example, as 186186025 + 19829209 = 13645^2 + 4453^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 36347 + ... + 41630.

Almost surely, 2206015234 is an apocalyptic number.

206015234 is a deficient number, since it is larger than the sum of its proper divisors (103245514).

206015234 is a wasteful number, since it uses less digits than its factorization.

206015234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79300.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 206015234 is about 14353.2307861331. The cubic root of 206015234 is about 590.6086164338.

Adding to 206015234 its reverse (432510602), we get a palindrome (638525836).

The spelling of 206015234 in words is "two hundred six million, fifteen thousand, two hundred thirty-four".

Divisors: 1 2 1321 2642 77977 155954 103007617 206015234