Search a number
-
+
241838209 = 1792915313
BaseRepresentation
bin11100110101000…
…10100010000001
3121212001122122201
432122202202001
5443402310314
635555233201
75664406444
oct1632424201
9555048581
10241838209
11114569698
1268ba8801
133b145742
142419365b
1516370b74
hexe6a2881

241838209 has 8 divisors (see below), whose sum is σ = 256356360. Its totient is φ = 227352576.

The previous prime is 241838203. The next prime is 241838237. The reversal of 241838209 is 902838142.

It can be written as a sum of positive squares in 4 ways, for example, as 6890625 + 234947584 = 2625^2 + 15328^2 .

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 241838209 - 29 = 241837697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241838203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8137 + ... + 23449.

It is an arithmetic number, because the mean of its divisors is an integer number (32044545).

Almost surely, 2241838209 is an apocalyptic number.

It is an amenable number.

241838209 is a deficient number, since it is larger than the sum of its proper divisors (14518151).

241838209 is a wasteful number, since it uses less digits than its factorization.

241838209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 241838209 is about 15551.1481569690. The cubic root of 241838209 is about 623.0290628643.

The spelling of 241838209 in words is "two hundred forty-one million, eight hundred thirty-eight thousand, two hundred nine".

Divisors: 1 17 929 15313 15793 260321 14225777 241838209