Search a number
-
+
243124304 = 24194331847
BaseRepresentation
bin11100111110111…
…00100001010000
3121221110222211212
432133130201100
5444214434204
640042555252
76011344133
oct1637344120
9557428755
10243124304
11115267985
1269508b28
133b4a5c47
142440a21a
1516526c6e
hexe7dc850

243124304 has 40 divisors (see below), whose sum is σ = 497259840. Its totient is φ = 114835968.

The previous prime is 243124267. The next prime is 243124319. The reversal of 243124304 is 403421342.

243124304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243124304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130709 + ... + 132555.

It is an arithmetic number, because the mean of its divisors is an integer number (12431496).

Almost surely, 2243124304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243124304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248629920).

243124304 is an abundant number, since it is smaller than the sum of its proper divisors (254135536).

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

243124304 is a wasteful number, since it uses less digits than its factorization.

243124304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307 (or 2301 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 243124304 is about 15592.4438110259. The cubic root of 243124304 is about 624.1315331969.

Adding to 243124304 its reverse (403421342), we get a palindrome (646545646).

The spelling of 243124304 in words is "two hundred forty-three million, one hundred twenty-four thousand, three hundred four".

Divisors: 1 2 4 8 16 19 38 76 152 304 433 866 1732 1847 3464 3694 6928 7388 8227 14776 16454 29552 32908 35093 65816 70186 131632 140372 280744 561488 799751 1599502 3199004 6398008 12796016 15195269 30390538 60781076 121562152 243124304