21006579420840

Names of 21006579420840

• Cardinal: 21006579420840 can be written as Twenty-one trillion, six billion, five hundred seventy-nine million, four hundred twenty thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.100657942084 × 10¹³

Factors of 21006579420840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3305

Divisors of 21006579420840

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 61 65 78 104 120 122 130 156 183 195 211 244 260 305 312 366 390 401 422 488 520 610 633 732 780 793 802 844 915 1055 1203 1220 1266 1464 1560 1586 1604 1688 1830 2005 2110 2379 2406 2440 2532 2609 2743 3165 3172 3208 3660 3965 4010 4220 4758 4812 5064 5213 5218 5486 6015 6330 6344 7320 7827 7930 8020 8229 8440 9516 9624 10426 10436 10972 11895 12030 12660 12871 13045 13715 15639 15654 15860 16040 16458 19032 20852 20872 21944 23790 24060 24461 25320 25742 26065 26090 27430 31278 31308 31720 32916 33917 38613 39135 41145 41704 47580 48120 48922 51484 52130 52180 54860 62556 62616 64355 65832 67834 73383 77226 78195 78270 82290 84611 95160 97844 101751 102968 104260 104360 109720 122305 125112 128710 135668 146766 154452 156390 156540 159149 164580 167323 169222 169585 193065 195688 203502 208520 244610 253833 257420 271336 293532 308904 312780 313080 317993 318298 329160 334646 338444 339170 366915 386130 407004 423055 477447 489220 501969 507666 508755 514840 550499 587064 625560 635986 636596 669292 676888 678340 733830 772260 795745 814008 836615 846110 953979 954894 978440 1003938 1015332 1017510 1046209 1099943 1100998 1269165 1271972 1273192 1338584 1356680 1467660 1544520 1589965 1591490 1651497 1673230 1692220 1907958 1909788 2007876 2030664 2035020 2068937 2092418 2199886 2201996 2387235 2509845 2538330 2543944 2752495 2935320 3138627 3179930 3182980 3299829 3302994 3346460 3384440 3815916 3819576 4015752 4070040 4137874 4184836 4399772 4403992 4769895 4774470 5019690 5076660 5161271 5231045 5499715 5504990 6206811 6277254 6359860 6365960 6599658 6605988 6692920 7156487 7631832 8257485 8275748 8369672 8799544 9539790 9548940 10039380 10153320 10322542 10344685 10462090 10999430 11009980 12413622 12554508 12719720 13199316 13211976 13600717 14312974 15483813 15693135 16499145 16514970 16551496 19079580 19097880 20078760 20645084 20689370 20924180 21469461 21998860 22019960 24827244 25109016 25806355 26398632 27201434 28625948 30967626 31034055 31386270 32998290 33029940 33580439 35782435 38159160 40802151 41290168 41378740 41848360 42938922 43997720 49654488 51612710 54402868 57251896 61935252 62068110 62772540 63818749 65996580 66059880 67096523 67160878 68003585 71564870 77419065 81604302 82757480 85877844 100741317 103225420 107347305 108805736 123870504 124136220 125545080 127637498 131993160 134193046 134321756 136007170 143129740 154838130 163208604 167902195 171755688 191456247 201289569 201482634 204010755 206450840 214694610 220750099 248272440 255274996 268386092 268643512 272014340 286259480 309676260 319093745 326417208 335482615 335804390 382912494 402579138 402965268 408021510 429389220 436545707 441500198 503706585 510549992 536772184 544028680 619352520 638187490 662250297 670965230 671608780 765824988 805158276 805930536 816043020 829643737 858778440 873091414 883000396 957281235 1006447845 1007413170 1103750495 1276374980 1309637121 1324500594 1341930460 1343217560 1531649976 1610316552 1632086040 1659287474 1746182828 1766000792 1914562470 2012895690 2014826340 2182728535 2207500990 2488931211 2552749960 2619274242 2649001188 2683860920 2869751287 3311251485 3318574948 3492365656 3829124940 4025791380 4029652680 4148218685 4365457070 4415001980 4977862422 5238548484 5298002376 5739502574 6548185605 6622502970 6637149896 7658249880 8051582760 8296437370 8609253861 8730914140 8830003960 9955724844 10477096968 11479005148 12444656055 13096371210 13245005940 13465756039 14348756435 16592874740 17218507722 17461828280 19911449688 22958010296 24889312110 26192742420 26490011880 26931512078 28697512870 33185749480 34437015444 40397268117 43046269305 49778624220 52385484840 53863024156 57395025740 67328780195 68874030888 80794536234 86092538610 99557248440 107726048312 114790051480 134657560390 161589072468 172185077220 175054828507 201986340585 269315120780 323178144936 344370154440 350109657014 403972681170 525164485521 538630241560 700219314028 807945362340 875274142535 1050328971042 1400438628056 1615890724680 1750548285070 2100657942084 2625822427605 3501096570140 4201315884168 5251644855210 7002193140280 10503289710420 21006579420840
• Sum of all divisors σ(n): 69506376307200
• Sum of proper divisors (its aliquot sum) s(n): 48499796886360
• 21006579420840 is an abundant number, because the sum of its proper divisors (48499796886360) is greater than itself. Its abundance is 27493217465520

Bases of 21006579420840

• Binary: 100110001101011111001101101000100111010101000₂
• Hexadecimal: 0x131AF9B44EA8
• Base-36: 7G2AF0HBC

Squares and roots of 21006579420840

• 21006579420840 squared (21006579420840²) is 441276378964058589826305600
• 21006579420840 cubed (21006579420840³) is 9269707301249186251049301807044848704000
• The square root of 21006579420840 is 4583293.5124034987
• The cube root of 21006579420840 is 27592.1227523557

Scales and comparisons

• 21,006,579,420,840 seconds is equal to 667,944 years, 12 weeks, 6 days, 6 hours, 14 minutes.
• To count from 1 to 21,006,579,420,840 would take you about one million, six hundred sixty-nine thousand, eight hundred sixty 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 21006579420840 cubic inches would be around 2299.3 feet tall.

Recreational maths with 21006579420840

• 21006579420840 backwards is 04802497560012
• The number of decimal digits it has is: 14
• The sum of 21006579420840's digits is 48
• More coming soon!