18280920420

Names of 18280920420

• Cardinal: 18280920420 can be written as Eighteen billion, two hundred eighty million, nine hundred twenty thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.828092042 × 10¹⁰

Factors of 18280920420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 918

Divisors of 18280920420

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 28 30 34 35 36 42 45 51 60 61 63 68 70 84 85 90 102 105 119 122 126 140 153 170 180 183 204 210 238 244 252 255 289 305 306 315 340 357 366 420 427 476 510 549 578 595 610 612 630 714 732 765 823 854 867 915 1020 1037 1071 1098 1156 1190 1220 1260 1281 1428 1445 1530 1646 1708 1734 1785 1830 2023 2074 2135 2142 2196 2380 2469 2562 2601 2745 2890 3060 3111 3292 3468 3570 3660 3843 4046 4115 4148 4270 4284 4335 4938 5124 5185 5202 5355 5490 5761 5780 6069 6222 6405 7140 7259 7407 7686 8092 8230 8540 8670 9333 9876 10115 10370 10404 10710 10980 11522 12138 12345 12444 12810 13005 13991 14518 14814 15372 15555 16460 17283 17340 17629 18207 18666 19215 20230 20740 21420 21777 23044 24276 24690 25620 26010 27982 28805 29036 29628 30345 31110 34566 35258 36295 36414 37035 37332 38430 40460 41973 43554 46665 49380 50203 51849 52020 52887 55964 57610 60690 62220 65331 69132 69955 70516 72590 72828 74070 76860 83946 86415 87108 88145 91035 93330 97937 100406 103698 105774 108885 115220 121380 123403 125919 130662 139910 145180 148140 150609 158661 167892 172830 176290 182070 186660 195874 200812 207396 209865 211548 217770 237847 246806 251015 251838 259245 261324 264435 279820 293811 301218 317322 326655 345660 351421 352580 364140 370209 391748 419730 435540 451827 475694 489685 493612 502030 503676 518490 528870 587622 602436 617015 629595 634644 653310 702842 713541 740418 753045 793305 839460 853451 881433 903654 951388 979370 1004060 1036980 1054263 1057740 1110627 1175244 1189235 1234030 1259190 1306620 1405684 1427082 1469055 1480836 1506090 1586610 1664929 1706902 1757105 1762866 1807308 1851045 1958740 2108526 2140623 2221254 2259135 2378470 2468060 2518380 2560353 2854164 2938110 3012180 3162789 3173220 3329858 3413804 3514210 3525732 3567705 3702090 4217052 4267255 4281246 4407165 4442508 4518270 4756940 4994787 5120706 5271315 5553135 5876220 5974157 6325578 6659716 7028420 7135410 7404180 7681059 8324645 8534510 8562492 8814330 9036540 9989574 10241412 10542630 10703115 11106270 11948314 12651156 12801765 14270820 14508667 14984361 15362118 15813945 16649290 17069020 17628660 17922471 19979148 21085260 21406230 22212540 23896628 24973935 25603530 29017334 29870785 29968722 30724236 31627890 33298580 35844942 38405295 42812460 43526001 49947870 51207060 53767413 58034668 59741570 59937444 63255780 71689884 72543335 74921805 76810590 87052002 89612355 99895740 101560669 107534826 119483140 130578003 145086670 149843610 153621180 174104004 179224710 203121338 215069652 217630005 261156006 268837065 290173340 299687220 304682007 358449420 406242676 435260010 507803345 522312012 537674130 609364014 652890015 870520020 914046021 1015606690 1075348260 1218728028 1305780030 1523410035 1828092042 2031213380 2611560060 3046820070 3656184084 4570230105 6093640140 9140460210 18280920420
• Sum of all divisors σ(n): 68507781888
• Sum of proper divisors (its aliquot sum) s(n): 50226861468
• 18280920420 is an abundant number, because the sum of its proper divisors (50226861468) is greater than itself. Its abundance is 31945941048

Bases of 18280920420

• Binary: 10001000001101000001011010101100100₂
• Hexadecimal: 0x441A0B564
• Base-36: 8EBZKH0

Squares and roots of 18280920420

• 18280920420 squared (18280920420²) is 334192051402372976400
• 18280920420 cubed (18280920420³) is 6109338296683329780726938088000
• The square root of 18280920420 is 135206.9540371351
• The cube root of 18280920420 is 2634.3047766979

Scales and comparisons

• 18,280,920,420 seconds is equal to 581 years, 14 weeks, 2 days, 17 hours, 27 minutes.
• To count from 1 to 18,280,920,420 would take you about one thousand, one hundred sixty-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 18280920420 cubic inches would be around 219.5 feet tall.

Recreational maths with 18280920420

• 18280920420 backwards is 02402908281
• 18280920420 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18280920420's digits is 36
• More coming soon!