1218121836815872

Names of 1218121836815872

• Cardinal: 1218121836815872 can be written as One quadrillion, two hundred eighteen trillion, one hundred twenty-one billion, eight hundred thirty-six million, eight hundred fifteen thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.218121836815872 × 10¹⁵

Factors of 1218121836815872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2471

Divisors of 1218121836815872

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 8 16 19 31 32 38 62 64 76 97 124 128 152 194 248 256 304 388 496 512 589 608 776 961 992 1093 1178 1216 1229 1552 1843 1922 1984 2186 2356 2432 2458 3007 3104 3686 3844 3968 4372 4712 4864 4916 6014 6208 7372 7688 7936 8744 9424 9728 9832 12028 12416 14744 15376 15872 17488 18259 18848 19664 20767 23351 24056 24832 29488 30752 33883 34976 36518 37696 38099 39328 41534 46702 48112 49664 57133 58976 61504 67766 69952 73036 75392 76198 78656 83068 93217 93404 96224 106021 114266 117952 119213 123008 135532 139904 146072 150784 152396 157312 166136 186434 186808 192448 212042 228532 235904 238426 246016 271064 279808 292144 301568 304792 314624 332272 372868 373616 384896 424084 457064 471808 476852 492032 542128 559616 584288 609584 629248 643777 664544 723881 745736 747232 769792 848168 914128 943616 953704 1050373 1084256 1168576 1181069 1219168 1287554 1329088 1343297 1447762 1491472 1494464 1539584 1696336 1771123 1828256 1907408 2014399 2100746 2168512 2265047 2337152 2362138 2438336 2575108 2658176 2686594 2895524 2982944 2988928 3286651 3392672 3542246 3656512 3695603 3814816 4028798 4201492 4337024 4530094 4674304 4724276 4876672 5150216 5316352 5373188 5791048 5965888 5977856 6573302 6785344 7084492 7313024 7391206 7629632 8057596 8402984 8674048 9060188 9348608 9448552 9753344 10300432 10632704 10746376 11582096 11931776 11955712 13146604 13570688 14168984 14626048 14782412 15259264 16115192 16805968 17348096 18120376 18897104 19506688 19957087 20600864 21492752 22440311 23164192 23863552 25522643 26293208 27141376 28337968 29252096 29564824 30518528 32230384 33611936 36240752 37794208 39914174 41201728 41642207 42985504 44880622 46328384 47727104 51045286 52586416 54282752 56675936 59129648 61037056 62446369 64460768 67223872 70216457 72481504 75588416 79828348 82403456 83284414 85971008 89761244 92656768 101886181 102090572 105172832 113351872 114563693 118259296 124892738 128921536 130299809 134447744 140432914 144963008 151176832 159656696 164806912 166568828 171942016 179522488 185313536 203772362 204181144 210345664 226703744 229127386 236518592 249785476 257843072 260599618 268895488 280865828 289926016 302353664 319313392 329613824 333137656 343884032 359044976 370627072 407544724 408362288 420691328 453407488 458254772 473037184 499570952 515686144 521199236 537790976 561731656 579852032 604707328 638626784 666275312 687768064 718089952 791201933 815089448 816724576 841382656 906814976 916509544 946074368 999141904 1031372288 1042398472 1123463312 1159704064 1277253568 1290908417 1332550624 1436179904 1582403866 1630178896 1633449152 1682765312 1833019088 1892148736 1935837439 1998283808 2084796944 2176710167 2246926624 2475696371 2554507136 2581816834 2665101248 2872359808 3164807732 3260357792 3266898304 3666038176 3871674878 3996567616 4039294079 4169593888 4353420334 4493853248 4951392742 5109014272 5163633668 5330202496 5744719616 6329615464 6520715584 6533796608 7332076352 7743349756 7993135232 8078588158 8339187776 8706840668 8987706496 9902785484 10218028544 10327267336 10660404992 11489439232 12659230928 13041431168 13067593216 14664152704 15486699512 15986270464 16157176316 16678375552 17413681336 17975412992 19805570968 20654534672 21320809984 24527259923 25318461856 26082862336 29328305408 30973399024 31972540928 32314352632 33356751104 34827362672 35950825984 39611141936 41309069344 49054519846 50636923712 52165724672 58656610816 61946798048 64628705264 66713502208 69654725344 76746587501 79222283872 82618138688 98109039692 101273847424 123893596096 125218116449 129257410528 139309450688 153493175002 158444567744 165236277376 196218079384 202547694848 247787192192 250436232898 258514821056 278618901376 306986350004 316889135488 330472554752 392436158768 405095389696 495574384384 500872465796 517029642112 557237802752 613972700008 633778270976 660945109504 784872317536 991148768768 1001744931592 1034059284224 1114475605504 1227945400016 1267556541952 1569744635072 2003489863184 2068118568448 2379144212531 2455890800032 3139489270144 4006979726368 4758288425062 4911781600064 6278978540288 8013959452736 9516576850124 9823563200128 12557957080576 16027918905472 19033153700248 19647126400256 32055837810944 38066307400496 39294252800512 64111675621888 76132614800992 152265229601984 304530459203968 609060918407936 1218121836815872
• Sum of all divisors σ(n): 2679189219352800
• Sum of proper divisors (its aliquot sum) s(n): 1461067382536928
• 1218121836815872 is an abundant number, because the sum of its proper divisors (1461067382536928) is greater than itself. Its abundance is 242945545721056

Bases of 1218121836815872

• Binary: 100010100111110000000010111011000000110011000000000₂
• Hexadecimal: 0x453E017606600
• Base-36: BZSDG2NZLS

Squares and roots of 1218121836815872

• 1218121836815872 squared (1218121836815872²) is 1483820809327673893827631120384
• 1218121836815872 cubed (1218121836815872³) is 1807474529763839900506371042997832162473934848
• The square root of 1218121836815872 is 34901602.2098681311
• The cube root of 1218121836815872 is 106798.1122518347

Scales and comparisons

• 1,218,121,836,815,872 seconds is equal to 38,732,506 years, 26 weeks, 4 days, 13 hours, 17 minutes, 52 seconds.
• To count from 1 to 1,218,121,836,815,872 would take you about one hundred sixteen million, one hundred ninety-seven thousand, five hundred nineteen 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 1218121836815872 cubic inches would be around 8899.8 feet tall.

Recreational maths with 1218121836815872

• 1218121836815872 backwards is 2785186381218121
• 1218121836815872 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1218121836815872's digits is 64
• More coming soon!