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243028344 = 233133125127
BaseRepresentation
bin11100111110001…
…01000101111000
3121221022010012210
432133011011320
5444203401334
640040535120
76010464306
oct1637050570
9557263183
10243028344
11115201879
12694814a0
133b471370
14243c3276
15165085e9
hexe7c5178

243028344 has 64 divisors (see below), whose sum is σ = 675440640. Its totient is φ = 72362880.

The previous prime is 243028339. The next prime is 243028403. The reversal of 243028344 is 443820342.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2892 + ... + 22235.

It is an arithmetic number, because the mean of its divisors is an integer number (10553760).

Almost surely, 2243028344 is an apocalyptic number.

243028344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243028344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337720320).

243028344 is an abundant number, since it is smaller than the sum of its proper divisors (432412296).

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

243028344 is a wasteful number, since it uses less digits than its factorization.

243028344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25180 (or 25176 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 243028344 is about 15589.3663758345. The cubic root of 243028344 is about 624.0494084809.

Adding to 243028344 its reverse (443820342), we get a palindrome (686848686).

The spelling of 243028344 in words is "two hundred forty-three million, twenty-eight thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 31 39 52 62 78 93 104 124 156 186 248 312 372 403 744 806 1209 1612 2418 3224 4836 9672 25127 50254 75381 100508 150762 201016 301524 326651 603048 653302 778937 979953 1306604 1557874 1959906 2336811 2613208 3115748 3919812 4673622 6231496 7839624 9347244 10126181 18694488 20252362 30378543 40504724 60757086 81009448 121514172 243028344