18231437840

Names of 18231437840

• Cardinal: 18231437840 can be written as Eighteen billion, two hundred thirty-one million, four hundred thirty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.823143784 × 10¹⁰

Factors of 18231437840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 61

Divisors of 18231437840

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 17 19 20 22 28 34 35 38 40 44 49 55 56 68 70 76 77 80 85 88 95 98 110 112 119 121 133 136 140 152 154 170 176 187 190 196 209 220 238 242 245 266 272 280 289 304 308 323 340 343 374 380 385 392 418 440 476 484 490 532 539 560 578 595 605 616 646 665 680 686 748 760 770 784 833 836 847 880 931 935 952 968 980 1045 1064 1078 1156 1190 1210 1232 1292 1309 1330 1360 1372 1445 1463 1496 1520 1540 1615 1666 1672 1694 1715 1862 1870 1904 1936 1960 2023 2057 2090 2128 2156 2261 2299 2312 2380 2420 2584 2618 2660 2695 2744 2890 2926 2992 3080 3179 3230 3332 3344 3388 3430 3553 3724 3740 3773 3920 4046 4114 4165 4180 4235 4312 4522 4598 4624 4655 4760 4840 5168 5236 5320 5390 5488 5491 5780 5831 5852 5929 6160 6358 6460 6517 6545 6664 6776 6860 7106 7315 7448 7480 7546 8092 8228 8330 8360 8470 8624 9044 9163 9196 9310 9520 9680 10115 10241 10285 10472 10640 10780 10982 11305 11495 11560 11662 11704 11858 12716 12920 13034 13090 13328 13552 13720 14161 14212 14399 14630 14896 14960 15092 15827 15895 16093 16184 16456 16660 16720 16940 17765 18088 18326 18392 18620 18865 20230 20482 20570 20944 21560 21964 22253 22610 22990 23120 23324 23408 23716 24871 25432 25840 26068 26180 27440 27455 28322 28424 28798 29155 29260 29645 30184 31654 31790 32186 32368 32585 32912 33320 33880 34969 35530 36176 36652 36784 37240 37730 38437 39083 40460 40964 41140 41503 43120 43928 44506 45220 45815 45980 46648 47432 49742 50864 51205 52136 52360 54910 56644 56848 57596 58310 58520 59290 60368 60401 63308 63580 64141 64372 65170 66640 67760 69938 70805 71060 71687 71995 73304 74480 75460 76874 78166 79135 80465 80920 81928 82280 83006 87856 89012 90440 91630 91960 93296 94864 99127 99484 100793 102410 104272 104720 109820 110789 111265 112651 113288 115192 116620 117040 118580 120802 124355 126616 127160 128282 128744 130340 139876 141610 142120 143374 143990 146608 150920 153748 155771 156332 158270 160930 161840 163856 164560 166012 174097 174845 178024 180880 183260 183920 192185 195415 198254 198968 201586 204820 207515 219640 221578 222530 225302 226576 230384 233240 237160 241604 244783 248710 253232 254320 256564 257488 260680 269059 273581 279752 283220 284240 286748 287980 301840 302005 307496 311542 312664 316540 320705 321860 332024 348194 349690 356048 358435 366520 384370 390830 396508 397936 403172 409640 415030 422807 439280 443156 445060 450604 466480 474320 483208 489566 495635 497420 503965 513128 521360 538118 547162 553945 559504 563255 566440 573496 575960 604010 614992 623084 625328 633080 641410 643720 664048 664411 696388 699380 705551 716870 733040 768740 778855 781660 788557 793016 806344 819280 830060 845614 870485 886312 890120 901208 966416 979132 991270 994840 1007930 1026256 1076236 1090397 1094324 1107890 1126510 1132880 1146992 1151920 1208020 1218679 1223915 1246168 1266160 1282820 1287440 1328822 1345295 1367905 1392776 1398760 1411102 1433740 1537480 1557710 1563320 1577114 1586032 1612688 1660120 1691228 1713481 1740970 1772624 1780240 1802416 1883413 1915067 1958264 1982540 1989680 2015860 2114035 2152472 2180794 2188648 2215780 2253020 2416040 2437358 2447830 2492336 2565640 2657644 2690590 2735810 2785552 2797520 2822204 2867480 2959649 3074960 3115420 3126640 3154228 3320240 3322055 3382456 3426962 3481940 3527755 3766826 3830134 3916528 3942785 3965080 4031720 4228070 4304944 4361588 4377296 4431560 4506040 4650877 4832080 4874716 4895660 5131280 5315288 5381180 5451985 5471620 5644408 5734960 5919298 6093395 6230840 6308456 6644110 6764912 6853924 6963880 7055510 7533652 7660268 7885570 7930160 8063440 8456140 8567405 8723176 8863120 9012080 9301754 9417065 9575335 9749432 9791320 10630576 10762360 10903970 10943240 11288816 11838596 11994367 12186790 12461680 12616912 13288220 13405469 13707848 13927760 14111020 14798245 15067304 15320536 15771140 16912280 17134810 17446352 18603508 18834130 19150670 19498864 19582640 20717543 21524720 21807940 21886480 23254385 23677192 23988734 24373580 26576440 26810938 27415696 28222040 29596490 30134608 30641072 31542280 32556139 33824560 34269620 37207016 37668260 38301340 41435086 43615880 46508770 47354384 47977468 48747160 53152880 53621876 56444080 59192980 59971835 63084560 65112278 67027345 68539240 74414032 75336520 76602680 82870172 87231760 93017540 95954936 97494320 103587715 107243752 118385960 119943670 130224556 134054690 137078480 150673040 153205360 162780695 165740344 186035080 191909872 207175430 214487504 227892973 236771920 239887340 260449112 268109380 325561390 331480688 372070160 414350860 455785946 479774680 520898224 536218760 651122780 828701720 911571892 959549360 1072437520 1139464865 1302245560 1657403440 1823143784 2278929730 2604491120 3646287568 4557859460 9115718920 18231437840
• Sum of all divisors σ(n): 60756528000
• Sum of proper divisors (its aliquot sum) s(n): 42525090160
• 18231437840 is an abundant number, because the sum of its proper divisors (42525090160) is greater than itself. Its abundance is 24293652320

Bases of 18231437840

• Binary: 10000111110101011011010101000010000₂
• Hexadecimal: 0x43EADAA10
• Base-36: 8DIIZGW

Squares and roots of 18231437840

• 18231437840 squared (18231437840²) is 332385325713783865600
• 18231437840 cubed (18231437840³) is 6059862404679004176881314304000
• The square root of 18231437840 is 135023.8417465597
• The cube root of 18231437840 is 2631.9257938937

Scales and comparisons

• 18,231,437,840 seconds is equal to 579 years, 36 weeks, 4 days, 17 minutes, 20 seconds.
• To count from 1 to 18,231,437,840 would take you about one thousand, one hundred fifty-nine 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 18231437840 cubic inches would be around 219.3 feet tall.

Recreational maths with 18231437840

• 18231437840 backwards is 04873413281
• The number of decimal digits it has is: 11
• The sum of 18231437840's digits is 41
• More coming soon!