18257145984

Names of 18257145984

• Cardinal: 18257145984 can be written as Eighteen billion, two hundred fifty-seven million, one hundred forty-five thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.8257145984 × 10¹⁰

Factors of 18257145984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 23

Divisors of 18257145984

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 32 33 36 42 44 48 49 54 56 63 64 66 72 77 81 84 88 96 98 99 108 112 121 126 128 132 144 147 154 162 168 176 189 192 196 198 216 224 231 242 243 252 264 288 294 297 308 324 336 352 363 378 384 392 396 432 441 448 462 484 486 504 528 539 567 576 588 594 616 648 672 693 704 726 729 756 784 792 847 864 882 891 896 924 968 972 1008 1056 1078 1089 1134 1152 1176 1188 1232 1296 1323 1331 1344 1386 1408 1452 1458 1512 1568 1584 1617 1694 1701 1728 1764 1782 1848 1936 1944 2016 2079 2112 2156 2178 2187 2268 2352 2376 2464 2541 2592 2646 2662 2673 2688 2772 2904 2916 3024 3136 3168 3234 3267 3388 3402 3456 3528 3564 3696 3872 3888 3969 3993 4032 4158 4224 4312 4356 4374 4536 4704 4752 4851 4928 5082 5103 5184 5292 5324 5346 5544 5808 5832 5929 6048 6237 6272 6336 6468 6534 6776 6804 7056 7128 7392 7623 7744 7776 7938 7986 8019 8064 8316 8624 8712 8748 9072 9317 9408 9504 9702 9801 9856 10164 10206 10368 10584 10648 10692 11088 11616 11664 11858 11907 11979 12096 12474 12672 12936 13068 13552 13608 14112 14256 14553 14784 15246 15309 15488 15552 15876 15972 16038 16632 17248 17424 17496 17787 18144 18634 18711 18816 19008 19404 19602 20328 20412 21168 21296 21384 22176 22869 23232 23328 23716 23814 23958 24057 24192 24948 25872 26136 27104 27216 27951 28224 28512 29106 29403 29568 30492 30618 31104 31752 31944 32076 33264 34496 34848 34992 35574 35721 35937 36288 37268 37422 38016 38808 39204 40656 40824 42336 42592 42768 43659 44352 45738 46464 46656 47432 47628 47916 48114 49896 51744 52272 53361 54208 54432 55902 56133 56448 57024 58212 58806 60984 61236 63504 63888 64152 65219 66528 68607 68992 69696 69984 71148 71442 71874 72576 74536 74844 77616 78408 81312 81648 83853 84672 85184 85536 87318 88209 88704 91476 93312 94864 95256 95832 96228 99792 103488 104544 106722 107163 107811 108416 108864 111804 112266 114048 116424 117612 121968 122472 127008 127776 128304 130438 130977 133056 137214 139392 139968 142296 142884 143748 149072 149688 155232 156816 160083 162624 163296 167706 168399 169344 170368 171072 174636 176418 182952 189728 190512 191664 192456 195657 199584 205821 206976 209088 213444 214326 215622 217728 223608 224532 232848 235224 243936 244944 251559 254016 255552 256608 260876 261954 264627 266112 274428 279936 284592 285768 287496 298144 299376 310464 313632 320166 323433 325248 326592 335412 336798 342144 349272 352836 365904 379456 381024 383328 384912 391314 392931 399168 411642 418176 426888 428652 431244 447216 449064 465696 470448 480249 487872 489888 503118 508032 511104 513216 521752 523908 529254 548856 569184 571536 574992 586971 596288 598752 617463 620928 627264 640332 646866 653184 670824 673596 698544 705672 731808 754677 758912 762048 766656 769824 782628 785862 798336 823284 853776 857304 862488 894432 898128 931392 940896 960498 970299 975744 979776 1006236 1026432 1043504 1047816 1058508 1097712 1138368 1143072 1149984 1173942 1178793 1192576 1197504 1234926 1254528 1280664 1293732 1341648 1347192 1397088 1411344 1440747 1463616 1509354 1524096 1533312 1539648 1565256 1571724 1646568 1707552 1714608 1724976 1760913 1788864 1796256 1852389 1862784 1881792 1920996 1940598 1959552 2012472 2087008 2095632 2117016 2195424 2264031 2276736 2286144 2299968 2347884 2357586 2395008 2469852 2561328 2587464 2683296 2694384 2794176 2822688 2881494 2910897 2927232 3018708 3079296 3130512 3143448 3293136 3415104 3429216 3449952 3521826 3577728 3592512 3704778 3763584 3841992 3881196 4024944 4174016 4191264 4234032 4322241 4390848 4528062 4572288 4599936 4695768 4715172 4939704 5122656 5174928 5282739 5366592 5388768 5588352 5645376 5762988 5821794 6037416 6261024 6286896 6586272 6792093 6830208 6858432 6899904 7043652 7185024 7409556 7683984 7762392 8049888 8348032 8382528 8468064 8644482 8781696 9056124 9391536 9430344 9879408 10245312 10349856 10565478 10733184 10777536 11290752 11525976 11643588 12074832 12522048 12573792 12966723 13172544 13584186 13716864 13799808 14087304 14819112 15367968 15524784 15848217 16099776 16765056 16936128 17288964 18112248 18783072 18860688 19758816 20376279 20490624 20699712 21130956 21555072 23051952 23287176 24149664 25044096 25147584 25933446 26345088 27168372 28174608 29638224 30735936 31049568 31696434 32199552 33872256 34577928 36224496 37566144 37721376 39517632 40752558 41399424 42261912 46103904 46574352 47544651 48299328 50295168 51866892 54336744 56349216 59276448 61471872 62099136 63392868 69155856 72448992 75132288 75442752 79035264 81505116 84523824 92207808 93148704 95089302 96598656 103733784 108673488 112698432 118552896 124198272 126785736 138311712 142633953 144897984 150885504 163010232 169047648 184415616 186297408 190178604 207467568 217346976 225396864 237105792 253571472 276623424 285267906 289795968 326020464 338095296 372594816 380357208 414935136 434693952 507142944 553246848 570535812 652040928 676190592 760714416 829870272 869387904 1014285888 1141071624 1304081856 1521428832 1659740544 2028571776 2282143248 2608163712 3042857664 4564286496 6085715328 9128572992 18257145984
• Sum of all divisors σ(n): 69795907200
• Sum of proper divisors (its aliquot sum) s(n): 51538761216
• 18257145984 is an abundant number, because the sum of its proper divisors (51538761216) is greater than itself. Its abundance is 33281615232

Bases of 18257145984

• Binary: 10001000000001101011111000010000000₂
• Hexadecimal: 0x44035F080
• Base-36: 8DXU000

Squares and roots of 18257145984

• 18257145984 squared (18257145984²) is 333323379481087328256
• 18257145984 cubed (18257145984³) is 6085533599066441519022320123904
• The square root of 18257145984 is 135119.0067459053
• The cube root of 18257145984 is 2633.1623054157

Scales and comparisons

• 18,257,145,984 seconds is equal to 580 years, 27 weeks, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 18,257,145,984 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 18257145984 cubic inches would be around 219.4 feet tall.

Recreational maths with 18257145984

• 18257145984 backwards is 48954175281
• 18257145984 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18257145984's digits is 54
• More coming soon!