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242545230152320 = 275653741178311
BaseRepresentation
bin110111001001011111110110…
…010010010000001010000000
31011210210002122010010102210011
4313021133312102100022000
5223242330112404333240
62215503423541114304
7102042212623613254
oct6711376622201200
91153702563112704
10242545230152320
1170311944309577
1223252a829b8994
13a544bbca302c4
1443c7374c32264
151d0925861d6ea
hexdc97f6490280

242545230152320 has 128 divisors (see below), whose sum is σ = 580808422097280. Its totient is φ = 96855211315200.

The previous prime is 242545230152317. The next prime is 242545230152321. The reversal of 242545230152320 is 23251032545242.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is not an unprimeable number, because it can be changed into a prime (242545230152321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097165965 + ... + 3097244275.

It is an arithmetic number, because the mean of its divisors is an integer number (4537565797635).

Almost surely, 2242545230152320 is an apocalyptic number.

242545230152320 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 242545230152320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290404211048640).

242545230152320 is an abundant number, since it is smaller than the sum of its proper divisors (338263191944960).

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

242545230152320 is an equidigital number, since it uses as much as digits as its factorization.

242545230152320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86394 (or 86382 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 242545230152320 its reverse (23251032545242), we get a palindrome (265796262697562).

The spelling of 242545230152320 in words is "two hundred forty-two trillion, five hundred forty-five billion, two hundred thirty million, one hundred fifty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 653 1306 2612 3265 5224 6530 7411 10448 13060 14822 20896 26120 29644 37055 41792 52240 59288 74110 78311 83584 104480 118576 148220 156622 208960 237152 296440 313244 391555 417920 474304 592880 626488 783110 948608 1185760 1252976 1566220 2371520 2505952 3132440 4743040 4839383 5011904 6264880 9678766 10023808 12529760 19357532 24196915 25059520 38715064 48393830 50119040 51137083 77430128 96787660 102274166 154860256 193575320 204548332 255685415 309720512 387150640 409096664 511370830 580362821 619441024 774301280 818193328 1022741660 1160725642 1548602560 1636386656 2045483320 2321451284 2901814105 3097205120 3272773312 4090966640 4642902568 5803628210 6545546624 8181933280 9285805136 11607256420 16363866560 18571610272 23214512840 32727733120 37143220544 46429025680 74286441088 92858051360 185716102720 371432205440 378976922113 757953844226 1515907688452 1894884610565 3031815376904 3789769221130 6063630753808 7579538442260 12127261507616 15159076884520 24254523015232 30318153769040 48509046030464 60636307538080 121272615076160 242545230152320