18128089980

Names of 18128089980

• Cardinal: 18128089980 can be written as Eighteen billion, one hundred twenty-eight million, eighty-nine thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.812808998 × 10¹⁰

Factors of 18128089980

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1638

Divisors of 18128089980

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 13 14 15 18 20 21 22 26 27 28 30 33 35 36 39 42 44 45 49 52 54 55 60 63 65 66 70 77 78 81 84 90 91 98 99 105 108 110 117 126 130 132 135 140 143 147 154 156 162 165 180 182 189 195 196 198 210 220 231 234 245 252 260 270 273 286 294 297 308 315 324 330 351 364 378 385 390 396 405 420 429 441 455 462 468 490 495 539 540 546 567 572 585 588 594 630 637 660 693 702 715 735 756 770 780 810 819 858 882 891 910 924 945 980 990 1001 1053 1078 1092 1134 1155 1170 1188 1260 1274 1287 1323 1365 1386 1404 1430 1470 1485 1540 1597 1617 1620 1638 1716 1755 1764 1782 1820 1890 1911 1980 2002 2079 2106 2145 2156 2205 2268 2310 2340 2457 2548 2574 2646 2695 2730 2772 2835 2860 2940 2970 3003 3185 3194 3234 3276 3465 3510 3564 3780 3822 3861 3969 4004 4095 4158 4212 4290 4410 4455 4620 4791 4851 4914 5005 5148 5265 5292 5390 5460 5670 5733 5940 6006 6237 6370 6388 6435 6468 6615 6930 7007 7020 7371 7644 7722 7938 7985 8085 8190 8316 8580 8820 8910 9009 9555 9582 9702 9828 10010 10395 10530 10780 11179 11340 11466 11583 12012 12285 12474 12740 12870 13230 13860 14014 14373 14553 14742 15015 15444 15876 15970 16170 16380 17199 17567 17820 18018 19110 19164 19305 19404 19845 20020 20761 20790 21021 21060 22358 22932 23166 23955 24255 24570 24948 25740 26460 27027 28028 28665 28746 29106 29484 30030 31185 31940 32340 33537 34398 35035 35134 36036 36855 38220 38610 39690 41522 41580 42042 43119 43659 44716 45045 46332 47910 48510 49140 51597 52701 54054 55895 57330 57492 57915 58212 60060 62283 62370 63063 67074 68796 70070 70268 71865 72765 73710 77220 78253 79380 81081 83044 84084 85995 86238 87318 87835 90090 95820 97020 100611 103194 103805 105105 105402 108108 111790 114660 115830 122969 124566 124740 126126 129357 134148 135135 140140 143730 145327 145530 147420 156506 158103 162162 167685 171990 172476 174636 175670 180180 186849 189189 201222 206388 207610 210210 210804 215595 218295 223580 228371 231660 234759 245938 249132 252252 257985 258714 263505 270270 287460 290654 291060 301833 311415 313012 315315 316206 324324 335370 343980 351340 368907 373698 378378 391265 402444 405405 415220 420420 431190 435981 436590 456742 469518 474309 491876 503055 515970 517428 527010 540540 560547 567567 581308 603666 614845 622830 630630 632412 646785 670740 685113 704277 726635 737814 747396 756756 782530 790515 810810 860783 862380 871962 873180 905499 913484 934245 939036 945945 948618 1006110 1017289 1031940 1054020 1106721 1121094 1135134 1141855 1173795 1207332 1229690 1245660 1261260 1293570 1307943 1370226 1408554 1422927 1453270 1475628 1509165 1565060 1581030 1598597 1621620 1681641 1721566 1743924 1810998 1844535 1868490 1891890 1897236 2012220 2034578 2055339 2112831 2179905 2213442 2242188 2270268 2283710 2347590 2371545 2459380 2582349 2587140 2615886 2740452 2802735 2817108 2837835 2845854 2906540 3018330 3051867 3162060 3197194 3320163 3363282 3425565 3443132 3521385 3621996 3689070 3736980 3783780 3923829 4069156 4110678 4225662 4303915 4359810 4426884 4527495 4567420 4695180 4743090 4795791 5086445 5164698 5231772 5533605 5605470 5675670 5691708 6036660 6103734 6166017 6338493 6394388 6539715 6640326 6726564 6851130 7042770 7114635 7378140 7747047 7847658 7992985 8221356 8408205 8451324 8607830 8719620 9054990 9155601 9486180 9591582 9960489 10172890 10276695 10329396 10564155 11067210 11190179 11210940 11351340 11771487 12207468 12332034 12676986 12911745 13079430 13280652 13702260 14085540 14229270 14387373 15259335 15494094 15695316 15985970 16600815 16816410 17215660 18109980 18311202 18498051 19183164 19619145 19920978 20345780 20553390 21128310 22134420 22380358 23241141 23542974 23978955 24664068 25353972 25823490 26158860 27466803 28458540 28774746 30518670 30830085 30988188 31692465 31971940 33201630 33570537 33632820 36622404 36996102 38735235 39238290 39841956 41106780 42256620 43162119 44760716 45778005 46482282 47085948 47957910 49802445 51646980 54933606 55950895 57549492 58857435 61037340 61660170 63384930 66403260 67141074 69723423 71936865 73992204 77470470 78476580 82400409 86324238 91556010 92490255 92964564 95915820 99604890 100711611 109867212 111901790 116205705 117714870 123320340 126769860 129486357 134282148 137334015 139446846 143873730 154940940 164800818 167852685 172648476 183112020 184980510 199209780 201423222 215810595 223803580 232411410 235429740 258972714 274668030 278893692 287747460 302134833 329601636 335705370 348617115 369961020 402846444 412002045 431621190 464822820 503558055 517945428 549336060 604269666 647431785 671410740 697234230 824004090 863242380 906404499 1007116110 1208539332 1294863570 1394468460 1510674165 1648008180 1812808998 2014232220 2589727140 3021348330 3625617996 4532022495 6042696660 9064044990 18128089980
• Sum of all divisors σ(n): 77767040736
• Sum of proper divisors (its aliquot sum) s(n): 59638950756
• 18128089980 is an abundant number, because the sum of its proper divisors (59638950756) is greater than itself. Its abundance is 41510860776

Bases of 18128089980

• Binary: 10000111000100001001011001101111100₂
• Hexadecimal: 0x43884B37C
• Base-36: 8BSZVR0

Squares and roots of 18128089980

• 18128089980 squared (18128089980²) is 328627646322976400400
• 18128089980 cubed (18128089980³) is 5957391542458532327867707992000
• The square root of 18128089980 is 134640.5955869179
• The cube root of 18128089980 is 2626.9432011571

Scales and comparisons

• 18,128,089,980 seconds is equal to 576 years, 21 weeks, 4 days, 20 hours, 33 minutes.
• To count from 1 to 18,128,089,980 would take you about one thousand, one hundred fifty-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 18128089980 cubic inches would be around 218.9 feet tall.

Recreational maths with 18128089980

• 18128089980 backwards is 08998082181
• 18128089980 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18128089980's digits is 54
• More coming soon!