Search a number
-
+
243280248 = 23310136677
BaseRepresentation
bin11101000000000…
…10100101111000
3121221202220202120
432200002211320
5444234431443
640050201240
76012563601
oct1640024570
9557686676
10243280248
11115364062
1269583220
133b52bc13
142444ada8
1516558083
hexe802978

243280248 has 16 divisors (see below), whose sum is σ = 608200680. Its totient is φ = 81093408.

The previous prime is 243280243. The next prime is 243280253. The reversal of 243280248 is 842082342.

It is an interprime number because it is at equal distance from previous prime (243280243) and next prime (243280253).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243280241) 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 3 ways as a sum of consecutive naturals, for example, 5068315 + ... + 5068362.

Almost surely, 2243280248 is an apocalyptic number.

It is an amenable number.

243280248 is an abundant number, since it is smaller than the sum of its proper divisors (364920432).

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

243280248 is a wasteful number, since it uses less digits than its factorization.

243280248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10136686 (or 10136682 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 243280248 is about 15597.4436366989. The cubic root of 243280248 is about 624.2649474820.

The spelling of 243280248 in words is "two hundred forty-three million, two hundred eighty thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 10136677 20273354 30410031 40546708 60820062 81093416 121640124 243280248