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242985744 = 24344332
BaseRepresentation
bin11100111101110…
…10101100010000
3121221012221210000
432132322230100
5444201020434
640040010000
76010226151
oct1636725420
9557187700
10242985744
11115182871
1269460900
133b457b61
14243b1928
15164eab99
hexe7bab10

242985744 has 75 divisors (see below), whose sum is σ = 704899173. Its totient is φ = 80808192.

The previous prime is 242985739. The next prime is 242985749. The reversal of 242985744 is 447589242.

The square root of 242985744 is 15588.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (242985739) and next prime (242985749).

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 215737344 = 5220^2 + 14688^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 242985744.

It is not an unprimeable number, because it can be changed into a prime (242985749) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 560952 + ... + 561384.

Almost surely, 2242985744 is an apocalyptic number.

242985744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

242985744 is the 15588-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242985744

242985744 is an abundant number, since it is smaller than the sum of its proper divisors (461913429).

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

242985744 is an frugal number, since it uses more digits than its factorization.

242985744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 438 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The cubic root of 242985744 is about 624.0129435185.

The spelling of 242985744 in words is "two hundred forty-two million, nine hundred eighty-five thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 433 648 866 1296 1299 1732 2598 3464 3897 5196 6928 7794 10392 11691 15588 20784 23382 31176 35073 46764 62352 70146 93528 140292 187056 187489 280584 374978 561168 562467 749956 1124934 1499912 1687401 2249868 2999824 3374802 4499736 5062203 6749604 8999472 10124406 13499208 15186609 20248812 26998416 30373218 40497624 60746436 80995248 121492872 242985744