1981365968520

Names of 1981365968520

• Cardinal: 1981365968520 can be written as One trillion, nine hundred eighty-one billion, three hundred sixty-five million, nine hundred sixty-eight thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.98136596852 × 10¹²

Factors of 1981365968520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 150

Divisors of 1981365968520

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 61 72 79 90 108 120 122 135 158 180 183 216 237 244 270 305 316 360 366 395 474 488 540 549 610 632 711 732 790 915 948 1080 1098 1185 1220 1422 1464 1580 1647 1830 1896 2133 2196 2370 2440 2745 2844 3160 3294 3555 3660 3721 4266 4392 4740 4819 5490 5688 6241 6588 7110 7320 7442 8235 8532 9480 9638 10665 10980 11163 12482 13176 14220 14457 14884 16470 17064 18605 18723 19276 21330 21960 22326 24095 24964 28440 28914 29768 31205 32940 33489 37210 37446 38552 42660 43371 44652 48190 49928 55815 56169 57828 62410 65880 66978 72285 74420 74892 85320 86742 89304 93615 96380 100467 111630 112338 115656 124820 130113 133956 144570 148840 149784 167445 168507 173484 187230 192760 200934 216855 223260 224676 249640 260226 267912 280845 289140 293959 334890 337014 346968 374460 380701 401868 433710 446520 449352 493039 502335 520452 561690 578280 587918 650565 669780 674028 748920 761402 803736 842535 867420 881877 986078 1004670 1040904 1123380 1142103 1175836 1301130 1339560 1348056 1469795 1479117 1522804 1685070 1734840 1763754 1903505 1972156 2009340 2246760 2284206 2351672 2465195 2602260 2645631 2939590 2958234 3045608 3370140 3426309 3527508 3807010 3944312 4018680 4409385 4437351 4568412 4930390 5204520 5291262 5710515 5879180 5916468 6740280 6852618 7055016 7395585 7614020 7936893 8818770 8874702 9136824 9860780 10278927 10582524 11421030 11758360 11832936 13228155 13312053 13705236 14791170 15228040 15873786 17131545 17637540 17749404 19721560 20557854 21165048 22186755 22842060 23222761 26456310 26624106 27410472 29582340 30075379 31747572 34263090 35275080 35498808 39684465 41115708 44373510 45684120 46445522 51394635 52912620 53248212 59164680 60150758 63495144 66560265 68526180 69668283 79368930 82231416 88747020 90226137 92891044 102789270 105825240 106496424 116113805 120301516 133120530 137052360 139336566 150376895 158737860 177494040 180452274 185782088 205578540 209004849 232227610 240603032 266241060 270678411 278673132 300753790 317475720 348341415 360904548 411157080 418009698 451130685 464455220 532482120 541356822 557346264 601507580 627014547 696682830 721809096 812035233 836019396 902261370 928910440 1045024245 1082713644 1203015160 1254029094 1353392055 1393365660 1624070466 1672038792 1804522740 1834598119 2090048490 2165427288 2508058188 2706784110 2786731320 3135072735 3248140932 3609045480 3669196238 4060176165 4180096980 5016116376 5413568220 5503794357 6270145470 6496281864 7338392476 8120352330 8360193960 9172990595 10827136440 11007588714 12540290940 14676784952 16240704660 16511383071 18345981190 22015177428 25080581880 27518971785 32481409320 33022766142 36691962380 44030354856 49534149213 55037943570 66045532284 73383924760 82556915355 99068298426 110075887140 132091064568 165113830710 198136596852 220151774280 247670746065 330227661420 396273193704 495341492130 660455322840 990682984260 1981365968520
• Sum of all divisors σ(n): 6800683968000
• Sum of proper divisors (its aliquot sum) s(n): 4819317999480
• 1981365968520 is an abundant number, because the sum of its proper divisors (4819317999480) is greater than itself. Its abundance is 2837952030960

Bases of 1981365968520

• Binary: 11100110101010010100111010101111010001000₂
• Hexadecimal: 0x1CD529D5E88
• Base-36: PA8651U0

Squares and roots of 1981365968520

• 1981365968520 squared (1981365968520²) is 3925811101209197630990400
• 1981365968520 cubed (1981365968520³) is 7778468514773929607259383462822208000
• The square root of 1981365968520 is 1407610.0200410623
• The cube root of 1981365968520 is 12559.9593299461

Scales and comparisons

• 1,981,365,968,520 seconds is equal to 63,001 years, 16 weeks, 11 hours, 42 minutes.
• To count from 1 to 1,981,365,968,520 would take you about one hundred fifty-seven thousand, five hundred 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 1981365968520 cubic inches would be around 1046.7 feet tall.

Recreational maths with 1981365968520

• 1981365968520 backwards is 0258695631891
• The number of decimal digits it has is: 13
• The sum of 1981365968520's digits is 63
• More coming soon!