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242888800 = 25527113943
BaseRepresentation
bin11100111101000…
…11000001100000
3121221001000210111
432132203001200
5444134420200
640033541104
76006343420
oct1636430140
9557030714
10242888800
11115116a50
1269414794
133b4229ab
1424388480
15164cc0ba
hexe7a3060

242888800 has 144 divisors (see below), whose sum is σ = 739452672. Its totient is φ = 75686400.

The previous prime is 242888783. The next prime is 242888801. The reversal of 242888800 is 8888242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242888801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59629 + ... + 63571.

It is an arithmetic number, because the mean of its divisors is an integer number (5135088).

Almost surely, 2242888800 is an apocalyptic number.

242888800 is a gapful number since it is divisible by the number (20) 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 242888800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369726336).

242888800 is an abundant number, since it is smaller than the sum of its proper divisors (496563872).

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

242888800 is a wasteful number, since it uses less digits than its factorization.

242888800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 242888800 is about 15584.8901183165. The cubic root of 242888800 is about 623.9299450173.

It can be divided in two parts, 24 and 2888800, that multiplied together give a triangular number (69331200 = T11775).

The spelling of 242888800 in words is "two hundred forty-two million, eight hundred eighty-eight thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 25 28 32 35 40 44 50 55 56 70 77 80 88 100 110 112 140 154 160 175 176 200 220 224 275 280 308 350 352 385 400 440 550 560 616 700 770 800 880 1100 1120 1232 1400 1540 1760 1925 2200 2464 2800 3080 3850 3943 4400 5600 6160 7700 7886 8800 12320 15400 15772 19715 27601 30800 31544 39430 43373 55202 61600 63088 78860 86746 98575 110404 126176 138005 157720 173492 197150 216865 220808 276010 303611 315440 346984 394300 433730 441616 552020 607222 630880 690025 693968 788600 867460 883232 1084325 1104040 1214444 1380050 1387936 1518055 1577200 1734920 2168650 2208080 2428888 2760100 3036110 3154400 3469840 4337300 4416160 4857776 5520200 6072220 6939680 7590275 8674600 9715552 11040400 12144440 15180550 17349200 22080800 24288880 30361100 34698400 48577760 60722200 121444400 242888800