18131701973840

Names of 18131701973840

• Cardinal: 18131701973840 can be written as Eighteen trillion, one hundred thirty-one billion, seven hundred one million, nine hundred seventy-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.813170197384 × 10¹³

Factors of 18131701973840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 94

Divisors of 18131701973840

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 49 52 56 65 67 70 80 91 98 104 112 130 134 140 169 182 196 208 245 260 268 280 335 338 343 364 392 455 469 490 520 536 560 637 670 676 686 728 784 845 871 910 938 980 1040 1072 1183 1274 1340 1352 1372 1456 1690 1715 1742 1820 1876 1960 2197 2345 2366 2548 2680 2704 2744 3185 3283 3380 3430 3484 3640 3752 3920 4355 4394 4459 4489 4690 4732 5096 5360 5488 5915 6097 6370 6566 6760 6860 6968 7280 7504 8281 8710 8788 8918 8978 9380 9464 10192 10985 11323 11830 12194 12740 13132 13520 13720 13936 15379 16415 16562 17420 17576 17836 17956 18760 18928 21970 22295 22445 22646 22981 23660 24388 25480 26264 27440 30485 30758 31423 32830 33124 34840 35152 35672 35912 37520 41405 42679 43940 44590 44890 45292 45962 47320 48776 50960 52528 56615 57967 58357 60970 61516 62846 65660 66248 69680 71344 71824 76895 79261 82810 85358 87880 89180 89780 90584 91924 94640 97552 107653 113230 114905 115934 116714 121940 123032 125692 131320 132496 147199 153790 157115 158522 165620 170716 175760 178360 179560 181168 183848 213395 215306 219961 226460 229810 231868 233428 243880 246064 251384 262640 289835 291785 294398 298753 300763 307580 314230 317044 331240 341432 356720 359120 367696 396305 408499 426790 430612 439922 452920 459620 463736 466856 487760 502768 538265 554827 579670 583570 588796 597506 601526 615160 628460 634088 662480 682864 735995 753571 758641 792610 816998 853580 861224 879844 905840 919240 927472 933712 1030393 1076530 1099805 1109654 1159340 1167140 1177592 1195012 1203052 1230320 1256920 1268176 1471990 1493765 1503815 1507142 1517282 1539727 1585220 1633996 1707160 1722448 1759688 1838480 2042495 2060786 2105341 2153060 2199610 2219308 2318680 2334280 2355184 2390024 2406104 2513840 2774135 2859493 2943980 2987530 3007630 3014284 3034564 3079454 3170440 3267992 3414320 3519376 3767855 3793205 3883789 3909919 4084990 4121572 4210682 4306120 4399220 4438616 4637360 4668560 4780048 4812208 5151965 5310487 5548270 5718986 5887960 5975060 6015260 6028568 6069128 6158908 6340880 6535984 7212751 7535710 7586410 7698635 7767578 7819838 8169980 8243144 8421364 8612240 8798440 8877232 9862333 10303930 10526705 10620974 11096540 11437972 11775920 11950120 12030520 12057136 12138256 12317816 14297465 14425502 14737387 15071420 15172820 15397270 15535156 15639676 16339960 16486288 16842728 17596880 19418945 19549595 19724666 20016451 20607860 21053410 21241948 22193080 22875944 23900240 24061040 24635632 26552435 27369433 28594930 28851004 29474774 30142840 30345640 30794540 31070312 31279352 32679920 33685456 36063755 37173409 38837890 39099190 39449332 40032902 41215720 42106820 42483896 44386160 45751888 49311665 50489257 50828947 53104870 54738866 57189860 57702008 58949548 60285680 60691280 61589080 62140624 62558704 69036331 72127510 73686935 74346818 77675780 78198380 78898664 80065804 82431440 84213640 84967792 98623330 100082255 100978514 101657894 103161709 106209740 109477732 114379720 115404016 117899096 123178160 136847165 138072662 144255020 147373870 148693636 155351560 156396760 157797328 160131608 168427280 185867045 191586031 197246660 200164510 201957028 203315788 206323418 212419480 218955464 228759440 235798192 252446285 254144735 260213863 273694330 276145324 288510040 294747740 297387272 310703120 312793520 320263216 345181655 355802629 371734090 383172062 394493320 400329020 403914056 406631576 412646836 424838960 437910928 483254317 504892570 508289470 515808545 520427726 547388660 552290648 577020080 589495480 594774544 660776311 690363310 711605258 743468180 766344124 788986640 800658040 807828112 813263152 825293672 957930155 966508634 1009785140 1016578940 1031617090 1040855452 1094777320 1104581296 1178990960 1301069315 1321552622 1341102217 1380726620 1423210516 1486936360 1532688248 1601316080 1650587344 1779013145 1915860310 1933017268 2019570280 2033157880 2063234180 2081710904 2189554640 2416271585 2490618403 2602138630 2643105244 2682204434 2761453240 2846421032 2973872720 3065376496 3303881555 3382780219 3558026290 3831720620 3866034536 4039140560 4066315760 4126468360 4163421808 4625434177 4832543170 4981236806 5204277260 5286210488 5364408868 5522906480 5692842064 6607763110 6705511085 6765560438 7116052580 7663441240 7732069072 8252936720 9250868354 9665086340 9962473612 10408554520 10572420976 10728817736 12453092015 13215526220 13411022170 13531120876 14232105160 15326882480 16913901095 17434328821 18501736708 19330172680 19924947224 20817109040 21457635472 23127170885 24906184030 26431052440 26822044340 27062241752 28464210320 32378039239 33827802190 34868657642 37003473416 38660345360 39849894448 46254341770 49812368060 52862104880 53644088680 54124483504 64756078478 67655604380 69737315284 74006946832 87171644105 92508683540 99624736120 107288177360 129512156956 135311208760 139474630568 161890196195 174343288210 185017367080 199249472240 226646274673 259024313912 270622417520 278949261136 323780392390 348686576420 370034734160 453292549346 518048627824 647560784780 697373152840 906585098692 1133231373365 1295121569560 1394746305680 1813170197384 2266462746730 2590243139120 3626340394768 4532925493460 9065850986920 18131701973840
• Sum of all divisors σ(n): 54063623040000
• Sum of proper divisors (its aliquot sum) s(n): 35931921066160
• 18131701973840 is an abundant number, because the sum of its proper divisors (35931921066160) is greater than itself. Its abundance is 17800219092320

Bases of 18131701973840

• Binary: 100000111110110011101101001111100001101010000₂
• Hexadecimal: 0x107D9DA7C350
• Base-36: 6FDL77IA8

Squares and roots of 18131701973840

• 18131701973840 squared (18131701973840²) is 328758616468153352044345600
• 18131701973840 cubed (18131701973840³) is 5960953255132523662762273514731119104000
• The square root of 18131701973840 is 4258133.6256439863
• The cube root of 18131701973840 is 26271.1766102487

Scales and comparisons

• 18,131,701,973,840 seconds is equal to 576,532 years, 1 week, 6 days, 17 hours, 37 minutes, 20 seconds.
• To count from 1 to 18,131,701,973,840 would take you about one million, four hundred forty-one thousand, three hundred thirty 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 18131701973840 cubic inches would be around 2189.3 feet tall.

Recreational maths with 18131701973840

• 18131701973840 backwards is 04837910713181
• The number of decimal digits it has is: 14
• The sum of 18131701973840's digits is 53
• More coming soon!