18265509990

Names of 18265509990

• Cardinal: 18265509990 can be written as Eighteen billion, two hundred sixty-five million, five hundred nine thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.826550999 × 10¹⁰

Factors of 18265509990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1832

Divisors of 18265509990

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 21 26 27 30 35 39 42 45 49 54 61 63 65 70 78 90 91 98 105 117 122 126 130 135 147 182 183 189 195 210 234 245 270 273 294 305 315 351 366 378 390 427 441 455 490 546 549 585 610 630 637 702 735 793 819 854 882 910 915 945 1098 1170 1274 1281 1323 1365 1470 1586 1638 1647 1741 1755 1830 1890 1911 2135 2205 2379 2457 2562 2646 2730 2745 2989 3185 3294 3482 3510 3822 3843 3965 4095 4270 4410 4758 4914 5223 5490 5551 5733 5978 6370 6405 6615 7137 7686 7930 8190 8235 8705 8967 9555 10446 11102 11466 11529 11895 12187 12285 12810 13230 14274 14945 15669 16470 16653 17199 17410 17934 19110 19215 21411 22633 23058 23790 24374 24570 26115 26901 27755 28665 29890 31338 33306 34398 35685 36561 38430 38857 42822 44835 45266 47007 49959 52230 53802 55510 57330 57645 60935 67899 71370 73122 77714 78345 80703 83265 85309 85995 89670 94014 99918 106201 107055 109683 113165 115290 116571 121870 134505 135798 149877 156690 158431 161406 166530 170618 171990 182805 194285 203697 212402 214110 219366 226330 233142 235035 249795 255927 269010 299754 316862 318603 329049 339495 349713 365610 388570 403515 407394 426545 470070 475293 499590 511854 531005 548415 582855 611091 637206 658098 678990 699426 743407 749385 767781 792155 807030 853090 950586 955809 1018485 1049139 1062010 1096830 1109017 1165710 1222182 1279635 1380613 1425879 1486814 1498770 1535562 1584310 1593015 1645245 1748565 1911618 2036970 2098278 2218034 2230221 2303343 2376465 2559270 2761226 2851758 2867427 3055455 3186030 3290490 3327051 3497130 3717035 3838905 4141839 4277637 4460442 4606686 4752930 4779045 5203849 5245695 5545085 5734854 6110910 6654102 6690663 6903065 7129395 7434070 7677810 8283678 8555274 9558090 9664291 9981153 10407698 10491390 11090170 11151105 11516715 12425517 13381326 13806130 14258790 14337135 15611547 16635255 19328582 19962306 20071989 20709195 21388185 22302210 23033430 24851034 26019245 28674270 28992873 29943459 31223094 33270510 33453315 37276551 40143978 41418390 42776370 46834641 48321455 49905765 52038490 57985746 59886918 62127585 66906630 67650037 74553102 78057735 86978619 93669282 96642910 99811530 100359945 124255170 135300074 140503923 144964365 149717295 156115470 173957238 186382755 200719890 202950111 234173205 260935857 281007846 289928730 299434590 338250185 372765510 405900222 434893095 468346410 521871714 608850333 676500370 702519615 869786190 1014750555 1217700666 1304679285 1405039230 1826550999 2029501110 2609358570 3044251665 3653101998 6088503330 9132754995 18265509990
• Sum of all divisors σ(n): 62054778240
• Sum of proper divisors (its aliquot sum) s(n): 43789268250
• 18265509990 is an abundant number, because the sum of its proper divisors (43789268250) is greater than itself. Its abundance is 25523758260

Bases of 18265509990

• Binary: 10001000000101101011001000001100110₂
• Hexadecimal: 0x440B59066
• Base-36: 8E2T9PI

Squares and roots of 18265509990

• 18265509990 squared (18265509990²) is 333628855194789800100
• 18265509990 cubed (18265509990³) is 6093901187512696489676652999000
• The square root of 18265509990 is 135149.9537180831
• The cube root of 18265509990 is 2633.5643474985

Scales and comparisons

• 18,265,509,990 seconds is equal to 580 years, 40 weeks, 6 days, 8 hours, 46 minutes, 30 seconds.
• To count from 1 to 18,265,509,990 would take you about one thousand, one hundred sixty-one 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 18265509990 cubic inches would be around 219.5 feet tall.

Recreational maths with 18265509990

• 18265509990 backwards is 09990556281
• 18265509990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18265509990's digits is 54
• More coming soon!