1998685912097644

Names of 1998685912097644

• Cardinal: 1998685912097644 can be written as One quadrillion, nine hundred ninety-eight trillion, six hundred eighty-five billion, nine hundred twelve million, ninety-seven thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 1.998685912097644 × 10¹⁵

Factors of 1998685912097644

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 266332

Divisors of 1998685912097644

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 11 14 22 28 29 31 44 49 58 62 77 98 116 124 154 196 203 217 308 319 341 406 434 539 638 682 812 868 899 1078 1276 1364 1421 1519 1798 2156 2233 2387 2842 3038 3596 3931 4466 4774 5684 6076 6293 7862 8932 9548 9889 12586 15631 15724 16709 19778 25172 27517 31262 33418 39556 43241 44051 55034 62524 66836 69223 86482 88102 110068 113999 121861 138446 172964 176204 192619 227998 243722 262321 276892 302687 385238 455996 484561 487444 524642 605374 770476 797993 853027 969122 1049284 1210748 1253989 1340471 1595986 1706054 1836247 1938244 2118809 2507978 2680942 2885531 3191972 3412108 3533969 3672494 4237618 5015956 5361884 5585951 5771062 5971189 7067938 7344988 7607309 8131951 8475236 8777923 9383297 11171902 11542124 11942378 12853729 14135876 15214618 16263902 17555846 18766594 20198717 22343804 23884756 24737783 25707458 30429236 32527804 35111692 37533188 38873659 40397434 49475566 51414916 53251163 56923657 61445461 65683079 77747318 80794868 83680399 89451461 98951132 106502326 113847314 122890922 131366158 141391019 155494636 167360798 173164481 178902922 213004652 227694628 235826579 245781844 262732316 272115613 282782038 334721596 346328962 357805844 372758141 398465599 471653158 544231226 565564076 585762793 626160227 692657924 745516282 796931198 943306316 1031183851 1088462452 1171525586 1252320454 1491032564 1593862396 1650786053 1904809291 2062367702 2343051172 2504640908 2594092369 3301572106 3809618582 4100339551 4124735404 4383121589 5188184738 6603144212 7218286957 7619237164 8200679102 8766243178 10376369476 11343022361 11555502371 14436573914 16401358204 17532486356 18158646583 22686044722 23111004742 28873147828 29904331679 31966699381 36317293166 45372089444 46222009484 50528008699 59808663358 63933398762 72634586332 79401156527 101056017398 119617326716 127110526081 127866797524 158802313054 202112034796 209330321753 223766895667 254221052162 317604626108 328947648469 351633693191 418660643506 447533791334 508442104324 555808095689 657895296938 703267386382 837321287012 895067582668 927034282049 1111616191378 1315790593876 1406534772764 1465312252271 1566368269669 1854068564098 2223232382756 2302633539283 2461435852337 2930624504542 3132736539338 3708137128196 4605267078566 4922871704674 5861249009084 6265473078676 6489239974343 9210534157132 9845743409348 10197377102539 12978479948686 16118434774981 17230050966359 20394754205078 25956959897372 32236869549962 34460101932718 40789508410156 45424679820401 64473739099924 68920203865436 71381639717773 90849359640802 142763279435546 181698719281604 285526558871092 499671478024411 999342956048822 1998685912097644
• Sum of all divisors σ(n): 4741039774033920
• Sum of proper divisors (its aliquot sum) s(n): 2742353861936276
• 1998685912097644 is an abundant number, because the sum of its proper divisors (2742353861936276) is greater than itself. Its abundance is 743667949838632

Bases of 1998685912097644

• Binary: 111000110011100101101010011110011101110001101101100₂
• Hexadecimal: 0x719CB53CEE36C
• Base-36: JOH3MRISFG

Squares and roots of 1998685912097644

• 1998685912097644 squared (1998685912097644²) is 3994745375217591118392190350736
• 1998685912097644 cubed (1998685912097644³) is 7984241303864616220324541412002669065839265984
• The square root of 1998685912097644 is 44706665.1864981313
• The cube root of 1998685912097644 is 125964.5048269379

Scales and comparisons

• 1,998,685,912,097,644 seconds is equal to 63,552,029 years, 34 weeks, 3 days, 10 hours, 14 minutes, 4 seconds.
• To count from 1 to 1,998,685,912,097,644 would take you about one hundred ninety million, six hundred fifty-six thousand and 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 1998685912097644 cubic inches would be around 10497 feet tall.

Recreational maths with 1998685912097644

• 1998685912097644 backwards is 4467902195868991
• The number of decimal digits it has is: 16
• The sum of 1998685912097644's digits is 88
• More coming soon!