28978711200
28,978,711,200 is an even composite number composed of five prime numbers multiplied together.
28978711200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 28978711200:
25 × 33 × 52 × 97 × 13831
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 5 × 97 × 13831)See below for interesting mathematical facts about the number 28978711200 from the Numbermatics database.
Names of 28978711200
- Cardinal: 28978711200 can be written as Twenty-eight billion, nine hundred seventy-eight million, seven hundred eleven thousand, two hundred.
Scientific notation
- Scientific notation: 2.89787112 × 1010
Factors of 28978711200
Divisors of 28978711200
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 72 75 80 90 96 97 100 108 120 135 144 150 160 180 194 200 216 225 240 270 288 291 300 360 388 400 432 450 480 485 540 582 600 675 720 776 800 864 873 900 970 1080 1164 1200 1350 1440 1455 1552 1746 1800 1940 2160 2328 2400 2425 2619 2700 2910 3104 3492 3600 3880 4320 4365 4656 4850 5238 5400 5820 6984 7200 7275 7760 8730 9312 9700 10476 10800 11640 13095 13831 13968 14550 15520 17460 19400 20952 21600 21825 23280 26190 27662 27936 29100 34920 38800 41493 41904 43650 46560 52380 55324 58200 65475 69155 69840 77600 82986 83808 87300 104760 110648 116400 124479 130950 138310 139680 165972 174600 207465 209520 221296 232800 248958 261900 276620 331944 345775 349200 373437 414930 419040 442592 497916 523800 553240 622395 663888 691550 698400 746874 829860 995832 1037325 1047600 1106480 1244790 1327776 1341607 1383100 1493748 1659720 1867185 1991664 2074650 2095200 2212960 2489580 2683214 2766200 2987496 3111975 3319440 3734370 3983328 4024821 4149300 4979160 5366428 5532400 5974992 6223950 6638880 6708035 7468740 8049642 8298600 9335925 9958320 10732856 11064800 11949984 12074463 12447900 13416070 14937480 16099284 16597200 18671850 19916640 20124105 21465712 24148926 24895800 26832140 29874960 32198568 33194400 33540175 36223389 37343700 40248210 42931424 48297852 49791600 53664280 59749920 60372315 64397136 67080350 72446778 74687400 80496420 96595704 99583200 100620525 107328560 120744630 128794272 134160700 144893556 149374800 160992840 181116945 193191408 201241050 214657120 241489260 268321400 289787112 298749600 301861575 321985680 362233890 386382816 402482100 482978520 536642800 579574224 603723150 643971360 724467780 804964200 905584725 965957040 1073285600 1159148448 1207446300 1448935560 1609928400 1811169450 1931914080 2414892600 2897871120 3219856800 3622338900 4829785200 5795742240 7244677800 9659570400 14489355600 28978711200
- Sum of all divisors σ(n): 105894472320
- Sum of proper divisors (its aliquot sum) s(n): 76915761120
- 28978711200 is an abundant number, because the sum of its proper divisors (76915761120) is greater than itself. Its abundance is 47937049920
Bases of 28978711200
- Binary: 110101111110100010000001010101000002
- Hexadecimal: 0x6BF440AA0
- Base-36: DB96CO0
Squares and roots of 28978711200
- 28978711200 squared (289787112002) is 839765702813005440000
- 28978711200 cubed (289787112003) is 24335327777483112249788928000000
-
The
square root of 28978711200 is 170231.3461146331 -
The
cube root of 28978711200 is 3071.5648492523
Scales and comparisons
How big is 28978711200?- 28,978,711,200 seconds is equal to 921 years, 22 weeks, 3 days, 18 hours.
-
To count from 1 to 28,978,711,200 would take you about one thousand, eight hundred forty-two years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 28978711200 cubic inches would be around 256 feet tall.
Recreational maths with 28978711200
- 28978711200 backwards is 00211787982
- 28978711200 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 28978711200's digits is 45
- More coming soon!
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