18681997137760

Names of 18681997137760

• Cardinal: 18681997137760 can be written as Eighteen trillion, six hundred eighty-one billion, nine hundred ninety-seven million, one hundred thirty-seven thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 1.868199713776 × 10¹³

Factors of 18681997137760

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2150

Divisors of 18681997137760

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 23 31 32 40 44 46 55 61 62 80 88 92 110 115 121 122 124 155 160 176 184 220 230 242 244 248 253 305 310 341 352 368 440 460 484 488 496 506 605 610 620 671 682 713 736 880 920 968 976 992 1012 1210 1220 1240 1265 1331 1342 1364 1403 1426 1705 1760 1840 1891 1936 1952 2017 2024 2420 2440 2480 2530 2662 2684 2728 2783 2806 2852 3355 3410 3565 3680 3751 3782 3872 4034 4048 4840 4880 4960 5060 5324 5368 5456 5566 5612 5704 6655 6710 6820 7015 7130 7381 7502 7564 7843 8068 8096 9455 9680 9760 10085 10120 10648 10736 10912 11132 11224 11408 13310 13420 13640 13915 14030 14260 14762 15004 15128 15433 15686 16136 18755 18910 19360 20170 20240 20801 21296 21472 22187 22264 22448 22816 26620 26840 27280 27830 28060 28520 29524 30008 30256 30613 30866 31372 32272 36905 37510 37820 39215 40340 40480 41261 41602 42592 43493 44374 44528 44896 46391 53240 53680 54560 55660 56120 57040 59048 60016 60512 61226 61732 62527 62744 64544 73810 75020 75640 77165 78430 80680 81191 82522 83204 86273 86986 88748 89056 92782 104005 106480 107360 110935 111320 112240 114080 118096 120032 122452 123037 123464 125054 125488 147620 150040 151280 153065 154330 156860 161360 162382 165044 166408 169763 172546 173972 177496 185564 206305 208010 212960 217465 221870 222640 224480 228811 231955 236192 244057 244904 246074 246928 250108 250976 295240 300080 302560 306130 308660 312635 313720 322720 324764 330088 332816 339526 345092 347944 354992 371128 405955 412610 416020 431365 434930 443740 445280 457622 463910 478423 488114 489808 492148 493856 500216 510301 590480 600160 612260 615185 617320 625270 627440 649528 660176 665632 679052 687797 690184 695888 709984 742256 811910 825220 832040 848815 862730 869860 887480 915244 927820 949003 956846 976228 979616 984296 1000432 1020602 1144055 1180960 1220285 1224520 1230370 1234640 1250540 1254880 1299056 1320352 1353407 1358104 1375594 1380368 1391776 1438121 1484512 1623820 1650440 1664080 1697630 1725460 1739720 1774960 1830488 1855640 1867393 1898006 1913692 1952456 1968592 2000864 2041204 2288110 2392115 2440570 2449040 2460740 2469280 2501080 2516921 2551505 2598112 2684627 2706814 2716208 2751188 2760736 2829851 2876242 3247640 3300880 3328160 3395260 3438985 3450920 3479440 3549920 3660976 3711280 3734786 3796012 3814147 3827384 3904912 3937184 4082408 4576220 4745015 4784230 4881140 4898080 4921480 5002160 5033842 5103010 5262653 5369254 5413628 5432416 5502376 5613311 5659702 5752484 6495280 6601760 6767035 6790520 6877970 6901840 6958880 7190605 7321952 7422560 7469572 7565767 7592024 7628294 7654768 7809824 8164816 9152440 9336965 9490030 9568460 9762280 9842960 10004320 10067684 10206020 10525306 10738508 10827256 11004752 11226622 11319404 11504968 12584605 12990560 13423135 13534070 13581040 13755940 13803680 14149255 14381210 14887477 14939144 15131534 15184048 15256588 15309536 15819331 16329632 18304880 18673930 18980060 19070735 19136920 19524560 19685920 20135368 20412040 21050612 21477016 21654512 22009504 22453244 22638808 23009936 25169210 26313265 26846270 27068140 27162080 27511880 28066555 28298510 28762420 29774954 29878288 30263068 30368096 30513176 31128361 31638662 36609760 37347860 37828835 37960120 38141470 38273840 39049120 40270736 40824080 41955617 42101224 42954032 43309024 44906488 45277616 46019872 50338420 52626530 53692540 54136280 55023760 56133110 56597020 57524840 57889183 59549908 59756576 60526136 61026352 61746421 62256722 63277324 74437385 74695720 75657670 75920240 76282940 76547680 79096655 80541472 81648160 83223437 83911234 84202448 85908064 87725381 89812976 90555232 100676840 105253060 107385080 108272560 110047520 112266220 113194040 115049680 115778366 119099816 121052272 122052704 123492842 124513444 126554648 148874770 149391440 151315340 151840480 152565880 155641805 158193310 163762247 166446874 167822468 168404896 174012641 175450762 179625952 201353680 209778085 210506120 214770160 216545120 224532440 226388080 230099360 231556732 238199632 242104544 246985684 249026888 253109296 289445915 297749540 298782880 302630680 305131760 308732105 311283610 316386620 327524494 332893748 335644936 342411971 348025282 350901524 402707360 416117185 419556170 421012240 429540320 438626905 449064880 452776160 461511787 463113464 476399264 493971368 498053776 506218592 578891830 595499080 605261360 610263520 617464210 622567220 632773240 655048988 665787496 671289872 684823942 696050564 701803048 818811235 832234370 839112340 842024480 870063205 877253810 898129760 923023574 926226928 964979191 987942736 996107552 1157783660 1190998160 1210522720 1234928420 1245134440 1265546480 1310097976 1331574992 1342579744 1369647884 1392101128 1403606096 1637622470 1664468740 1678224680 1712059855 1740126410 1754507620 1846047148 1852453856 1914139051 1929958382 1975885472 2307558935 2315567320 2381996320 2469856840 2490268880 2531092960 2620195952 2663149984 2739295768 2784202256 2807212192 3275244940 3328937480 3356449360 3424119710 3480252820 3509015240 3692094296 3766531681 3828278102 3859916764 4615117870 4631134640 4824895955 4939713680 4980537760 5076629657 5240391904 5478591536 5568404512 6550489880 6657874960 6712898720 6848239420 6960505640 7018030480 7384188592 7533063362 7656556204 7719833528 9230235740 9262269280 9570695255 9649791910 9879427360 10153259314 10614771101 10957183072 13100979760 13315749920 13696478840 13921011280 14036060960 14768377184 15066126724 15313112408 15439667056 18460471480 18832658405 19141390510 19299583820 20306518628 21229542202 25383148285 26201959520 27392957680 27842022560 30132253448 30626224816 30879334112 36920942960 37665316810 38282781020 38599167640 40613037256 42459084404 50766296570 53073855505 54785915360 60264506896 61252449632 73841885920 75330633620 76565562040 77198335280 81226074512 84918168808 101532593140 106147711010 116762482111 120529013792 150661267240 153131124080 154396670560 162452149024 169836337616 203065186280 212295422020 233524964222 301322534480 306262248160 339672675232 406130372560 424590844040 467049928444 583812410555 602645068960 812260745120 849181688080 934099856888 1167624821110 1698363376160 1868199713776 2335249642220 3736399427552 4670499284440 9340998568880 18681997137760
• Sum of all divisors σ(n): 53174932586496
• Sum of proper divisors (its aliquot sum) s(n): 34492935448736
• 18681997137760 is an abundant number, because the sum of its proper divisors (34492935448736) is greater than itself. Its abundance is 15810938310976

Bases of 18681997137760

• Binary: 100001111110110111101110011011001011101100000₂
• Hexadecimal: 0x10FDBDCD9760
• Base-36: 6MEE2QO9S

Squares and roots of 18681997137760

• 18681997137760 squared (18681997137760²) is 349017017055272832417817600
• 18681997137760 cubed (18681997137760³) is 6520334913656140158945556543625752576000
• The square root of 18681997137760 is 4322267.5921048665
• The cube root of 18681997137760 is 26534.3080680749

Scales and comparisons

• 18,681,997,137,760 seconds is equal to 594,029 years, 37 weeks, 3 days, 17 hours, 22 minutes, 40 seconds.
• To count from 1 to 18,681,997,137,760 would take you about one million, four hundred eighty-five thousand and seventy-four 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 18681997137760 cubic inches would be around 2211.2 feet tall.

Recreational maths with 18681997137760

• 18681997137760 backwards is 06773179918681
• The number of decimal digits it has is: 14
• The sum of 18681997137760's digits is 73
• More coming soon!