18421129440

Names of 18421129440

• Cardinal: 18421129440 can be written as Eighteen billion, four hundred twenty-one million, one hundred twenty-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.842112944 × 10¹⁰

Factors of 18421129440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 140

Divisors of 18421129440

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 29 30 32 35 36 40 41 42 45 48 53 56 58 60 63 70 72 80 82 84 87 90 96 105 106 112 116 120 123 126 140 144 145 159 160 164 168 174 180 203 205 210 212 224 232 240 246 252 261 265 280 287 288 290 315 318 328 336 348 360 369 371 406 410 420 424 435 464 477 480 492 504 522 530 560 574 580 609 615 630 636 656 672 696 720 738 742 795 812 820 840 841 848 861 870 928 954 984 1008 1015 1044 1060 1113 1120 1148 1160 1189 1218 1230 1260 1272 1305 1312 1392 1435 1440 1476 1484 1537 1590 1624 1640 1680 1682 1696 1722 1740 1827 1845 1855 1908 1968 2016 2030 2088 2120 2173 2226 2296 2320 2378 2385 2436 2460 2520 2523 2544 2583 2610 2784 2870 2952 2968 3045 3074 3180 3248 3280 3339 3360 3364 3444 3480 3567 3654 3690 3710 3816 3936 4060 4176 4205 4240 4305 4346 4452 4592 4611 4640 4756 4770 4872 4920 5040 5046 5088 5166 5220 5565 5740 5887 5904 5936 5945 6090 6148 6360 6496 6519 6560 6678 6728 6888 6960 7134 7308 7380 7420 7569 7632 7685 8120 8323 8352 8410 8480 8610 8692 8904 9135 9184 9222 9512 9540 9744 9840 10080 10092 10332 10440 10701 10759 10865 11130 11480 11774 11808 11872 11890 12180 12296 12615 12720 12915 13038 13356 13456 13776 13833 13920 14268 14616 14760 14840 15138 15211 15264 15370 16240 16646 16695 16820 17220 17384 17661 17808 17835 18270 18444 19024 19080 19488 19557 19680 20184 20664 20880 21402 21518 21730 22260 22960 23055 23548 23780 24360 24592 24969 25230 25440 25830 26076 26712 26912 27552 27666 28536 29232 29435 29520 29680 30276 30422 30740 32277 32480 32595 33292 33390 33640 34440 34481 34768 35322 35616 35670 36540 36888 37845 38048 38160 39114 40368 41328 41615 41760 42804 43036 43460 44520 44573 45633 45920 46110 47096 47560 48720 49184 49938 50460 51660 52152 52983 53424 53505 53795 55332 57072 58464 58870 59040 59360 60552 60844 61480 63017 64554 65190 66584 66780 67280 68880 68962 69165 69536 70644 71340 73080 73776 74907 75690 76055 76320 78228 80736 82656 83230 85608 86072 86920 88305 89040 89146 91266 92220 94192 95120 96831 97440 97785 99876 100920 103320 103443 104304 105966 106848 107010 107590 110664 114144 117740 121104 121688 122960 124845 126034 129108 130380 133168 133560 133719 134560 136899 137760 137924 138330 141288 142680 146160 147552 149814 151380 152110 156456 161385 166460 171216 172144 172405 173840 176610 178080 178292 182532 184440 188384 189051 190240 193662 195570 199752 201840 206640 206886 208608 211932 214020 215180 221328 222865 228165 235480 241367 242208 243376 245920 249690 252068 258216 260760 264915 266336 267120 267438 273798 275848 276660 282576 285360 292320 299628 302760 304220 310329 312011 312912 315085 322770 332920 342432 344288 344810 347680 353220 356584 365064 368880 374535 378102 387324 391140 399504 401157 403680 413280 413772 423864 428040 430360 441119 442656 445730 456330 470960 482734 484155 486752 499380 504136 516432 517215 521520 529830 534240 534876 547596 551696 553320 565152 567153 570720 599256 605520 608440 620658 624022 625824 630170 645540 665840 668595 684495 689620 706440 713168 724101 730128 737760 749070 756204 774648 782280 799008 802314 827544 847728 856080 860720 882238 891460 912660 936033 941920 945255 965468 968310 998760 1008272 1032864 1034430 1043040 1059660 1069752 1095192 1103392 1106640 1134306 1198512 1206835 1211040 1216880 1241316 1248044 1260340 1291080 1323357 1331680 1337190 1368990 1379240 1412880 1426336 1448202 1460256 1498140 1512408 1549296 1551645 1560055 1564560 1604628 1655088 1695456 1712160 1721440 1764476 1782920 1825320 1827493 1872066 1890510 1930936 1936620 1997520 2005785 2016544 2068860 2119320 2139504 2172303 2190384 2205595 2213280 2268612 2397024 2413670 2433760 2482632 2496088 2520680 2582160 2646714 2674380 2737980 2758480 2808099 2825760 2835765 2896404 2996280 3024816 3098592 3103290 3120110 3129120 3209256 3310176 3528952 3565840 3620505 3650640 3654986 3744132 3781020 3861872 3873240 3970071 3995040 4011570 4137720 4238640 4279008 4344606 4380768 4411190 4537224 4680165 4827340 4965264 4992176 5041360 5164320 5293428 5348760 5475960 5482479 5516960 5616198 5671530 5792808 5992560 6049632 6206580 6240220 6418512 6616785 7057904 7131680 7241010 7301280 7309972 7488264 7562040 7723744 7746480 7940142 8023140 8275440 8477280 8689212 8822380 9074448 9137465 9360330 9654680 9930528 9984352 10082720 10586856 10697520 10861515 10951920 10964958 11232396 11343060 11585616 11985120 12413160 12480440 12792451 12837024 13233570 14040495 14115808 14482020 14619944 14976528 15124080 15492960 15880284 16046280 16447437 16550880 17378424 17644760 18148896 18274930 18720660 19309360 19850355 21173712 21395040 21723030 21903840 21929916 22464792 22686120 23171232 24826320 24960880 25584902 26467140 27412395 28080990 28964040 29239888 29953056 30248160 31760568 32092560 32894874 34756848 35289520 36549860 37441320 38377353 38618720 39700710 42347424 43446060 43859832 44929584 45372240 49652640 49921760 51169804 52934280 54824790 56161980 57928080 58479776 63521136 63962255 64185120 65789748 69513696 70579040 73099720 74882640 76754706 79401420 82237185 86892120 87719664 89859168 90744480 102339608 105868560 109649580 112323960 115132059 115856160 127042272 127924510 131579496 146199440 149765280 153509412 158802840 164474370 173784240 175439328 191886765 204679216 211737120 219299160 224647920 230264118 255849020 263158992 292398880 307018824 317605680 328948740 347568480 383773530 409358432 438598320 449295840 460528236 511698040 526317984 575660295 614037648 635211360 657897480 767547060 877196640 921056472 1023396080 1151320590 1228075296 1315794960 1535094120 1842112944 2046792160 2302641180 2631589920 3070188240 3684225888 4605282360 6140376480 9210564720 18421129440
• Sum of all divisors σ(n): 77658025536
• Sum of proper divisors (its aliquot sum) s(n): 59236896096
• 18421129440 is an abundant number, because the sum of its proper divisors (59236896096) is greater than itself. Its abundance is 40815766656

Bases of 18421129440

• Binary: 10001001001111111000010000011100000₂
• Hexadecimal: 0x449FC20E0
• Base-36: 8GNGQG0

Squares and roots of 18421129440

• 18421129440 squared (18421129440²) is 339338009845234713600
• 18421129440 cubed (18421129440³) is 6250989403271063026406928384000
• The square root of 18421129440 is 135724.4614651315
• The cube root of 18421129440 is 2641.0224001443

Scales and comparisons

• 18,421,129,440 seconds is equal to 585 years, 38 weeks, 1 day, 12 hours, 24 minutes.
• To count from 1 to 18,421,129,440 would take you about one thousand, one hundred seventy-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 18421129440 cubic inches would be around 220.1 feet tall.

Recreational maths with 18421129440

• 18421129440 backwards is 04492112481
• 18421129440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18421129440's digits is 36
• More coming soon!