21381804071355

Names of 21381804071355

• Cardinal: 21381804071355 can be written as Twenty-one trillion, three hundred eighty-one billion, eight hundred four million, seventy-one thousand, three hundred fifty-five.

Scientific notation

• Scientific notation: 2.1381804071355 × 10¹³

Factors of 21381804071355

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3660

Divisors of 21381804071355

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 13 15 21 31 35 39 49 65 73 91 93 105 147 155 195 217 219 245 273 307 365 403 455 465 511 637 651 735 921 949 1085 1095 1209 1365 1519 1533 1535 1911 2015 2149 2263 2555 2821 2847 3185 3221 3255 3577 3991 4557 4605 4745 6045 6447 6643 6789 7595 7665 8463 9517 9555 9663 10731 10745 11315 11973 14105 14235 15043 15841 16105 17885 19747 19929 19955 22411 22547 22785 27937 28551 29419 32235 33215 33945 41873 42315 45129 46501 47523 47585 48315 53655 59241 59865 66619 67233 67641 75215 79205 83811 88257 98735 99645 99851 110887 112055 112735 123721 125619 139503 139685 142755 147095 156877 157829 195559 199857 205933 209365 225645 232505 235133 237615 291343 293111 296205 299553 332661 333095 336165 338205 371163 419055 441285 466333 470631 473487 499255 554435 586677 617799 618605 628095 694741 697515 698957 705399 784385 789145 866047 874029 879333 977795 988847 999285 1029665 1098139 1175665 1298063 1398999 1441531 1456715 1465555 1497765 1645931 1663305 1855815 2039401 2051777 2084223 2096871 2331665 2353155 2367435 2598141 2933385 2966541 3056729 3088995 3294417 3473705 3494785 3526995 3894189 4324593 4330235 4370145 4396665 4863187 4892699 4937793 4944235 5490695 6062329 6118203 6155331 6490315 6921929 6994995 7207655 7289123 8229655 9031633 9086441 9170187 10197005 10258885 10421115 10484355 11521517 12855011 12990705 14275807 14589561 14678097 14832705 15283645 16472085 18186987 19470945 20765787 21397103 21622965 21867369 24315935 24463495 24688965 27094899 27259323 30311645 30591015 30654257 30776655 34042309 34564551 34609645 36445615 38565033 42827421 45158165 45432205 45850935 48453503 51023861 57607585 63221431 63605087 64191309 64275055 71379035 72185831 72947805 73390485 89985077 90934935 91962771 94758599 102126927 103828935 106985515 109336845 135474495 136296615 145360509 149779721 153071583 153271285 170211545 172822755 189664293 190815261 192825165 214137105 214579799 216557493 242267515 255119305 269955231 284275797 316107155 318025435 320956545 357167027 360929155 398505341 442550017 449339163 449925385 459813855 473792995 505300817 510634635 629895539 643739397 663310193 726802545 748898605 765357915 938415803 948321465 954076305 1071501081 1072898995 1082787465 1195516023 1327650051 1349776155 1421378985 1502058593 1515902451 1785835135 1889686617 1989930579 1992526705 2212750085 2237760761 2246695815 2526504085 2789537387 2815247409 3149477695 3218696985 3316550965 3537105719 4506175779 4643171351 4692079015 5357505405 5977580115 6568910621 6638250255 6713282283 7510292965 7579512255 8368612161 9448433085 9949652895 10611317157 11188803805 13929514053 13947686935 14076237045 15664325327 17685528595 19526761709 19706731863 22530878895 23215856755 29090889893 32844553105 33566411415 41843060805 45982374347 46992975981 53056585785 58580285127 69647570265 78321626635 87272669679 97633808545 98533659315 109650277289 137947123041 145454449465 203636229251 229911871735 234964879905 292901425635 328950831867 436363348395 548251386445 610908687753 689735615205 1018181146255 1425453604757 1644754159335 3054543438765 4276360814271 7127268023785 21381804071355
• Sum of all divisors σ(n): 45006172839936
• Sum of proper divisors (its aliquot sum) s(n): 23624368768581
• 21381804071355 is an abundant number, because the sum of its proper divisors (23624368768581) is greater than itself. Its abundance is 2242564697226

Bases of 21381804071355

• Binary: 100110111001001010110110101100001100110111011₂
• Hexadecimal: 0x137256D619BB
• Base-36: 7KUNY2YM3

Squares and roots of 21381804071355

• 21381804071355 squared (21381804071355²) is 457181545345813253931536025
• 21381804071355 cubed (21381804071355³) is 9775366227623480384316837439773853063875
• The square root of 21381804071355 is 4624046.2877608609
• The cube root of 21381804071355 is 27755.4399188811

Scales and comparisons

• 21,381,804,071,355 seconds is equal to 679,875 years, 12 weeks, 3 hours, 49 minutes, 15 seconds.
• To count from 1 to 21,381,804,071,355 would take you about one million, six hundred ninety-nine thousand, six hundred eighty-eight 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 21381804071355 cubic inches would be around 2313 feet tall.

Recreational maths with 21381804071355

• 21381804071355 backwards is 55317040818312
• The number of decimal digits it has is: 14
• The sum of 21381804071355's digits is 48
• More coming soon!