18944990400

Names of 18944990400

• Cardinal: 18944990400 can be written as Eighteen billion, nine hundred forty-four million, nine hundred ninety thousand, four hundred.

Scientific notation

• Scientific notation: 1.89449904 × 10¹⁰

Factors of 18944990400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1985

Divisors of 18944990400

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 17 20 21 24 25 28 30 32 34 35 40 42 48 50 51 56 60 64 68 70 75 80 84 85 96 100 102 105 112 119 120 136 140 150 160 168 170 175 192 200 204 210 224 238 240 255 272 280 289 300 320 336 340 350 357 400 408 420 425 448 476 480 510 525 544 560 578 595 600 672 680 700 714 800 816 840 850 867 952 960 1020 1050 1088 1120 1156 1190 1200 1275 1344 1360 1400 1428 1445 1600 1632 1680 1700 1734 1785 1904 1951 2023 2040 2100 2240 2312 2380 2400 2550 2720 2800 2856 2890 2975 3264 3360 3400 3468 3570 3808 3902 4046 4080 4200 4335 4624 4760 4800 5100 5440 5600 5712 5780 5853 5950 6069 6720 6800 6936 7140 7225 7616 7804 8092 8160 8400 8670 8925 9248 9520 9755 10115 10200 11200 11424 11560 11706 11900 12138 13600 13657 13872 14280 14450 15608 16184 16320 16800 17340 17850 18496 19040 19510 20230 20400 21675 22848 23120 23412 23800 24276 27200 27314 27744 28560 28900 29265 30345 31216 32368 33167 33600 34680 35700 38080 39020 40460 40800 40971 43350 46240 46824 47600 48552 48775 50575 54628 55488 57120 57800 58530 60690 62432 64736 66334 68285 69360 71400 78040 80920 81600 81942 86700 92480 93648 95200 97104 97550 99501 101150 109256 114240 115600 117060 121380 124864 129472 132668 136570 138720 142800 146325 151725 156080 161840 163884 165835 173400 187296 190400 194208 195100 199002 202300 204855 218512 231200 232169 234120 242760 265336 273140 277440 285600 292650 303450 312160 323680 327768 331670 341425 346800 374592 388416 390200 398004 404600 409710 437024 462400 464338 468240 485520 497505 530672 546280 563839 571200 585300 606900 624320 647360 655536 663340 682850 693600 696507 780400 796008 809200 819420 829175 874048 928676 936480 971040 995010 1024275 1061344 1092560 1127678 1160845 1170600 1213800 1311072 1326680 1365700 1387200 1393014 1560800 1592016 1618400 1638840 1658350 1691517 1857352 1872960 1942080 1990020 2048550 2122688 2185120 2255356 2321690 2341200 2427600 2487525 2622144 2653360 2731400 2786028 2819195 3121600 3184032 3236800 3277680 3316700 3383034 3482535 3714704 3946873 3980040 4097100 4370240 4510712 4643380 4682400 4855200 4975050 5306720 5462800 5572056 5638390 5804225 6368064 6555360 6633400 6766068 6965070 7429408 7893746 7960080 8194200 8457585 9021424 9286760 9364800 9710400 9950100 10613440 10925600 11144112 11276780 11608450 11840619 13110720 13266800 13532136 13930140 14095975 14858816 15787492 15920160 16388400 16915170 17412675 18042848 18573520 19734365 19900200 21851200 22288224 22553560 23216900 23681238 26533600 27064272 27860280 28191950 31574984 31840320 32776800 33830340 34825350 36085696 37147040 39468730 39800400 42287925 44576448 45107120 46433800 47362476 53067200 54128544 55720560 56383900 59203095 63149968 65553600 67660680 69650700 74294080 78937460 79600800 84575850 90214240 92867600 94724952 98671825 108257088 111441120 112767800 118406190 126299936 135321360 139301400 157874920 159201600 169151700 180428480 185735200 189449904 197343650 222882240 225535600 236812380 252599872 270642720 278602800 296015475 315749840 338303400 371470400 378899808 394687300 451071200 473624760 541285440 557205600 592030950 631499680 676606800 757799616 789374600 902142400 947249520 1114411200 1184061900 1262999360 1353213600 1578749200 1894499040 2368123800 2706427200 3157498400 3788998080 4736247600 6314996800 9472495200 18944990400
• Sum of all divisors σ(n): 75497675776
• Sum of proper divisors (its aliquot sum) s(n): 56552685376
• 18944990400 is an abundant number, because the sum of its proper divisors (56552685376) is greater than itself. Its abundance is 37607694976

Bases of 18944990400

• Binary: 10001101001001101011001110011000000₂
• Hexadecimal: 0x469359CC0
• Base-36: 8PBCW5C

Squares and roots of 18944990400

• 18944990400 squared (18944990400²) is 358912661256092160000
• 18944990400 cubed (18944990400³) is 6799596921935117912715264000000
• The square root of 18944990400 is 137640.8020900779
• The cube root of 18944990400 is 2665.8239364831

Scales and comparisons

• 18,944,990,400 seconds is equal to 602 years, 20 weeks, 2 days, 17 hours, 20 minutes.
• To count from 1 to 18,944,990,400 would take you about one thousand, two hundred four 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 18944990400 cubic inches would be around 222.2 feet tall.

Recreational maths with 18944990400

• 18944990400 backwards is 00409944981
• 18944990400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18944990400's digits is 48
• More coming soon!