Search a number
-
+
243202233 = 3613132247
BaseRepresentation
bin11100111111011…
…11100010111001
3121221121221202010
432133233202321
5444224432413
640044400133
76012120261
oct1637574271
9557557663
10243202233
1111531048a
1269546049
133b502561
142442a7a1
151653edc3
hexe7ef8b9

243202233 has 8 divisors (see below), whose sum is σ = 324801088. Its totient is φ = 161869104.

The previous prime is 243202231. The next prime is 243202241. The reversal of 243202233 is 332202342.

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

It is not a de Polignac number, because 243202233 - 21 = 243202231 is a prime.

It is a super-2 number, since 2×2432022332 = 118294652272372578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243202231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64285 + ... + 67962.

It is an arithmetic number, because the mean of its divisors is an integer number (40600136).

Almost surely, 2243202233 is an apocalyptic number.

It is an amenable number.

243202233 is a deficient number, since it is larger than the sum of its proper divisors (81598855).

243202233 is a wasteful number, since it uses less digits than its factorization.

243202233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132863.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 243202233 is about 15594.9425455819. The cubic root of 243202233 is about 624.1982106807.

Adding to 243202233 its reverse (332202342), we get a palindrome (575404575).

The spelling of 243202233 in words is "two hundred forty-three million, two hundred two thousand, two hundred thirty-three".

Divisors: 1 3 613 1839 132247 396741 81067411 243202233