1998355979880

Names of 1998355979880

• Cardinal: 1998355979880 can be written as One trillion, nine hundred ninety-eight billion, three hundred fifty-five million, nine hundred seventy-nine thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.99835597988 × 10¹²

Factors of 1998355979880

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 8720

Divisors of 1998355979880

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 19 20 24 26 27 30 36 38 39 40 45 52 54 57 60 65 72 76 78 81 90 95 97 104 108 114 117 120 130 135 152 156 162 171 180 190 194 195 216 228 234 243 247 260 270 285 291 312 324 342 351 360 380 388 390 405 456 468 485 486 494 513 520 540 570 582 585 648 684 702 741 760 776 780 810 855 873 936 970 972 988 1026 1053 1080 1140 1164 1170 1215 1235 1261 1368 1404 1455 1482 1539 1560 1620 1710 1746 1755 1843 1940 1944 1976 2052 2106 2223 2280 2328 2340 2430 2470 2522 2565 2619 2808 2910 2964 3078 3159 3240 3420 3492 3510 3686 3705 3783 3880 4104 4212 4365 4446 4617 4680 4860 4940 5044 5130 5238 5265 5529 5820 5928 6156 6305 6318 6669 6840 6984 7020 7372 7410 7566 7695 7857 8424 8581 8730 8892 9215 9234 9720 9880 10088 10260 10476 10530 11058 11115 11349 11640 12312 12610 12636 13095 13338 14040 14744 14820 15132 15390 15714 15795 16587 17162 17460 17784 18430 18468 18915 20007 20520 20952 21060 22116 22230 22698 23085 23571 23959 25220 25272 25743 26190 26676 27645 29640 30264 30780 31428 31590 33174 33345 34047 34324 34920 36860 36936 37830 39285 40014 42120 42905 44232 44460 45396 46170 47142 47918 49761 50440 51486 52380 53352 55290 56745 60021 61560 62856 63180 66348 66690 68094 68648 71877 73720 75660 77229 78570 80028 82935 85810 88920 90792 92340 94284 95836 99522 100035 102141 102972 104760 110580 111553 113490 117855 119795 120042 126360 128715 132696 133380 136188 143754 149283 151320 154458 157140 160056 163039 165870 170235 171620 184680 188568 191672 199044 200070 204282 205944 215631 221160 223106 226980 231687 235710 239590 240084 248805 257430 266760 272376 287508 298566 300105 306423 308916 314280 326078 331740 334659 340470 343240 359385 386145 398088 400140 408564 431262 446212 447849 453960 463374 471420 479180 480168 489117 497610 510705 514860 557765 575016 597132 600210 612846 617832 646893 652156 663480 669318 680940 695061 718770 746415 772290 800280 815195 817128 832357 862524 892424 895698 926748 942840 958360 978234 995220 1003977 1021410 1029720 1078155 1115530 1158435 1194264 1200420 1225692 1293786 1304312 1338636 1361880 1390122 1437540 1467351 1492830 1532115 1544580 1630390 1664714 1673295 1725048 1791396 1853496 1940679 1956468 1990440 2007954 2042820 2085183 2119507 2156310 2231060 2239245 2316870 2400840 2445585 2451384 2497071 2587572 2677272 2780244 2875080 2934702 2985660 3011931 3064230 3089160 3234465 3260780 3329428 3346590 3475305 3582792 3881358 3912936 4015908 4085640 4161785 4170366 4239014 4312620 4402053 4462120 4478490 4633740 4891170 4994142 5019885 5175144 5560488 5822037 5869404 5971320 6023862 6128460 6358521 6468930 6521560 6658856 6693180 6950610 7336755 7491213 7762716 8031816 8323570 8340732 8478028 8625240 8804106 8956980 9035793 9267480 9703395 9782340 9988284 10039770 10425915 10597535 10820641 11644074 11738808 12047724 12256920 12485355 12717042 12937860 13206159 13386360 13901220 14673510 14982426 15059655 15525432 15814783 16647140 16681464 16956056 17608212 17913960 18071586 19075563 19406790 19564680 19976568 20079540 20851830 21195070 21641282 22010265 22473639 23288148 24095448 24970710 25434084 25875720 26412318 27107379 27802440 29110185 29347020 29964852 30119310 31629566 31792605 32461923 33294280 35216424 36143172 37456065 38151126 38813580 39618477 40159080 41703660 42390140 43282564 44020530 44947278 45178965 46576296 47444349 49941420 50868168 52824636 54103205 54214758 57226689 58220370 58694040 59929704 60238620 63259132 63585210 64923846 66030795 67420917 72286344 74912130 76302252 77627160 79073915 79236954 83407320 84780280 86565128 88041060 89894556 90357930 94888698 95377815 97385769 99882840 105649272 108206410 108429516 112368195 114453378 116440740 120477240 126518264 127170420 129847692 132061590 134841834 135536895 142333047 149824260 152604504 158147830 158473908 162309615 171680067 176082120 179789112 180715860 189777396 190755630 194771538 198092385 202262751 205592179 216412820 216859032 224736390 228906756 232881480 237221745 254340840 259695384 264123180 269683668 271073790 284666094 286133445 292157307 299648520 316295660 316947816 324619230 337104585 343360134 361431720 379554792 381511260 389543076 396184770 404525502 411184358 426999141 432825640 449472780 457813512 474443490 486928845 515040201 528246360 539367336 542147580 569332188 572266890 584314614 616776537 632591320 649238460 674209170 686720268 711665235 763022520 779086152 792369540 809051004 822368716 853998282 858400335 876471921 898945560 948886980 973857690 1011313755 1027960895 1030080402 1084295160 1138664376 1144533780 1168629228 1233553074 1280997423 1298476920 1348418340 1373440536 1423330470 1460786535 1584739080 1618102008 1644737432 1707996564 1716800670 1752943842 1850329611 1897773960 1947715380 2022627510 2055921790 2060160804 2134995705 2289067560 2337258456 2467106148 2561994846 2575201005 2629415763 2696836680 2846660940 2921573070 3083882685 3415993128 3433601340 3505887684 3700659222 3842992269 3895430760 4045255020 4111843580 4120321608 4269991410 4382359605 4934212296 5123989692 5150402010 5258831526 5550988833 5693321880 5843146140 6167765370 6404987115 6867202680 7011775368 7401318444 7685984538 8090510040 8223687160 8539982820 8764719210 9251648055 10247979384 10300804020 10517663052 11101977666 11686292280 12335530740 12809974230 13147078815 14802636888 15371969076 16652966499 17079965640 17529438420 18503296110 19214961345 20601608040 21035326104 22203955332 24671061480 25619948460 26294157630 27754944165 30743938152 33305932998 35058876840 37006592220 38429922690 44407910664 49958899497 51239896920 52588315260 55509888330 66611865996 74013184440 76859845380 83264832495 99917798994 105176630520 111019776660 133223731992 153719690760 166529664990 199835597988 222039553320 249794497485 333059329980 399671195976 499588994970 666118659960 999177989940 1998355979880
• Sum of all divisors σ(n): 7714655020800
• Sum of proper divisors (its aliquot sum) s(n): 5716299040920
• 1998355979880 is an abundant number, because the sum of its proper divisors (5716299040920) is greater than itself. Its abundance is 3717943061040

Bases of 1998355979880

• Binary: 11101000101000111010011000101111001101000₂
• Hexadecimal: 0x1D1474C5E68
• Base-36: PI15JYI0

Squares and roots of 1998355979880

• 1998355979880 squared (1998355979880²) is 3993426622322154964814400
• 1998355979880 cubed (1998355979880³) is 7980287970929468665744887234334272000
• The square root of 1998355979880 is 1413632.1939882383
• The cube root of 1998355979880 is 12595.7573266689

Scales and comparisons

• 1,998,355,979,880 seconds is equal to 63,541 years, 28 weeks, 3 hours, 18 minutes.
• To count from 1 to 1,998,355,979,880 would take you about one hundred fifty-eight thousand, eight hundred fifty-three 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 1998355979880 cubic inches would be around 1049.6 feet tall.

Recreational maths with 1998355979880

• 1998355979880 backwards is 0889795538991
• 1998355979880 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1998355979880's digits is 81
• More coming soon!