1621978642189213

Names of 1621978642189213

• Cardinal: 1621978642189213 can be written as One quadrillion, six hundred twenty-one trillion, nine hundred seventy-eight billion, six hundred forty-two million, one hundred eighty-nine thousand, two hundred thirteen.

Scientific notation

• Scientific notation: 1.621978642189213 × 10¹⁵

Factors of 1621978642189213

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 68

Divisors of 1621978642189213

• Number of divisors d(n): 360
• Complete list of divisors:
  1 7 11 19 31 49 77 121 133 209 217 341 343 361 539 589 847 931 961 1331 1463 1519 2299 2387 2401 2527 3751 3773 3971 4123 5929 6479 6517 6727 6859 9317 10241 10571 10633 11191 14641 16093 16709 16807 17689 18259 25289 26257 26411 27797 28861 41261 41503 43681 45353 45619 47089 48013 65219 71269 71687 73997 74431 75449 78337 102487 112651 116281 116963 123101 123823 127813 177023 183799 184877 194579 200849 202027 212629 278179 288827 290521 305767 317471 319333 329623 336091 346921 453871 456533 480491 498883 501809 517979 521017 528143 548359 717409 783959 788557 813967 818741 829939 861707 866761 894691 1239161 1279091 1286593 1354111 1362053 1405943 1414189 1488403 1947253 2021789 2033647 2140369 2209339 2222297 2307361 2338919 2352637 2428447 3177097 3195731 3363437 3492181 3512663 3625853 3697001 3816131 3838513 5021863 5285401 5487713 5519899 5697769 5731187 5809573 6031949 6067327 6262837 6591499 8623549 8674127 8953637 9006151 9129329 9478777 9534371 9841601 9899323 10418821 13630771 14070001 14152523 14895221 14982583 15465373 15556079 16151527 16372433 16468459 16999129 22239679 22370117 23544059 24302729 24445267 25380971 25728109 25879007 26712917 26869591 35153041 36997807 38413991 38639293 39884383 40667011 41977441 42223643 43839859 46140493 60364843 60718889 62675459 63043057 63905303 66351439 66740597 68891207 72506489 72931747 95415397 98490007 99067661 100422619 104266547 104878081 108257611 108892553 114607031 115279213 118993903 155677753 163847431 164808413 170119103 171116869 177666797 180096763 181153049 186990419 188087137 246071287 258984649 267330019 268897937 279190681 283009199 284669077 293842087 295565501 306879013 322983451 422553901 425032223 438728213 447337121 461751851 464460073 482238449 507545423 510522229 667907779 689430049 693473627 702958333 729865829 734146567 757803277 797571379 802249217 832957321 1089744271 1146932017 1153658891 1190833721 1197818083 1260677341 1268071343 1308932933 1812892543 1871310133 1882285559 1954334767 1981064393 1992683539 2056894609 2068958507 2260884157 2957877307 3071097491 3113101189 3131359847 3232262957 3251220511 3375669143 3552817961 3573655603 4675354453 4826010343 4920708331 5079270361 5109060803 5304622939 5582999653 5615744519 5830701247 7628209897 8028524119 8075612237 8335836047 8773285169 8824741387 9162530531 12690247801 13099170931 13175998913 13867450751 13948784773 14398262263 15826189099 20705141149 21497682437 21791708323 21919518929 22625840699 22758543577 24869725727 33782072401 34444958317 35554892527 35763425621 37132360573 39080997571 39310211633 56199668833 58350852329 61412996183 61773189709 64137713717 88831734607 91694196517 96506136859 97072155257 100787835841 110783323693 144935988043 152541958261 153436632503 158380884893 174088080089 236474506807 241114708219 248884247689 250343979347 273566982997 393397681831 408455966303 429890973281 432412327963 641859375619 675542958013 679505086799 705514850887 1067793707827 1108666194251 1218616560623 1687802957533 1742189733823 1914968880979 2753783772817 3009236812967 4493015629333 4728800706091 4756535607593 7474555954789 7760663359757 12195328136761 13404782166853 21064657690769 33101604942637 52321891683523 85367296957327 147452603835383 231711234598459 1621978642189213
• Sum of all divisors σ(n): 2270292644548800
• Sum of proper divisors (its aliquot sum) s(n): 648314002359587
• 1621978642189213 is a deficient number, because the sum of its proper divisors (648314002359587) is less than itself. Its deficiency is 973664639829626

Bases of 1621978642189213

• Binary: 101110000110010111001010100110011010000101110011101₂
• Hexadecimal: 0x5C32E54CD0B9D
• Base-36: FYXYP9B89P

Squares and roots of 1621978642189213

• 1621978642189213 squared (1621978642189213²) is 2630814715717963053613293559369
• 1621978642189213 cubed (1621978642189213³) is 4267125280451622113511006023836009111146886597
• The square root of 1621978642189213 is 40273795.9744200547
• The cube root of 1621978642189213 is 117493.8253508357

Scales and comparisons

• 1,621,978,642,189,213 seconds is equal to 51,573,903 years, 37 weeks, 6 hours, 20 minutes, 13 seconds.
• To count from 1 to 1,621,978,642,189,213 would take you about one hundred fifty-four million, seven hundred twenty-one thousand, seven hundred eleven 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 1621978642189213 cubic inches would be around 9791.2 feet tall.

Recreational maths with 1621978642189213

• 1621978642189213 backwards is 3129812468791261
• The number of decimal digits it has is: 16
• The sum of 1621978642189213's digits is 70
• More coming soon!