1997651221512768

Names of 1997651221512768

• Cardinal: 1997651221512768 can be written as One quadrillion, nine hundred ninety-seven trillion, six hundred fifty-one billion, two hundred twenty-one million, five hundred twelve thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.997651221512768 × 10¹⁵

Factors of 1997651221512768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 185

Divisors of 1997651221512768

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 136 144 153 163 192 204 272 288 289 306 326 408 489 544 576 578 612 652 816 867 978 1088 1156 1224 1304 1467 1632 1734 1956 2312 2448 2601 2608 2771 2934 3264 3468 3912 4624 4896 4913 5202 5216 5542 5868 6936 7824 8313 9248 9792 9826 10404 10432 11084 11736 13872 14739 15648 16626 18496 19652 20808 22168 23472 24939 26569 27744 29478 31296 33252 39304 41616 44217 44336 46944 47107 49878 53138 55488 58956 66504 78608 79707 83232 88434 88672 93888 94214 99756 106276 117912 133008 141321 157216 159414 166464 176868 177344 188428 199512 212552 235824 239121 266016 282642 314432 318828 353736 376856 399024 423963 425104 451673 471648 478242 532032 565284 637656 707472 753712 798048 800819 847926 850208 903346 943296 956484 1130568 1275312 1355019 1414944 1507424 1596096 1601638 1695852 1700416 1806692 1912968 2261136 2402457 2550624 2710038 2829888 3014848 3203276 3391704 3613384 3825936 4065057 4330747 4522272 4804914 5101248 5420076 6406552 6783408 7207371 7226768 7651872 7678441 8130114 8661494 9044544 9609828 10840152 12813104 12992241 13566816 14414742 14453536 15303744 15356882 16260228 17322988 19219656 21680304 23035323 25626208 25984482 27133632 28829484 28907072 30713764 32520456 34645976 38439312 38976723 43360608 46070646 51252416 51968964 57658968 61427528 65040912 69105969 69291952 73622699 76878624 77953446 86721216 92141292 103937928 115317936 122855056 130081824 130533497 138211938 138583904 147245398 153757248 155906892 184282584 207875856 220868097 230635872 245710112 260163648 261066994 276423876 277167808 294490796 311813784 368565168 391600491 415751712 441736194 461271744 491420224 522133988 552847752 588981592 623627568 662604291 705911761 737130336 783200982 831503424 883472388 1044267976 1105695504 1174801473 1177963184 1247255136 1251585883 1325208582 1411823522 1474260672 1566401964 1766944776 2088535952 2117735283 2211391008 2349602946 2355926368 2494510272 2503171766 2650417164 2823647044 3132803928 3533889552 3754757649 4177071904 4235470566 4422782016 4699205892 4711852736 5006343532 5300834328 5647294088 6265607856 6353205849 7067779104 7509515298 8354143808 8470941132 9398411784 10012687064 10601668656 11264272947 11294588176 12000499937 12531215712 12706411698 14135558208 15019030596 16941882264 18796823568 20025374128 21203337312 21276960011 22528545894 22589176352 24000999874 25062431424 25412823396 30038061192 33883764528 36001499811 37593647136 40050748256 42406674624 42553920022 45057091788 45178352704 48001999748 50825646792 60076122384 63830880033 67767529056 72002999622 75187294272 80101496512 85107840044 90114183576 96003999496 101651293584 108004499433 120152244768 127661760066 135535058112 144005999244 170215680088 180228367152 191492640099 192007998992 203302587168 204008498929 216008998866 240304489536 255323520132 288011998488 340431360176 360456734304 382985280198 384015997984 406605174336 408016997858 432017997732 510647040264 576023996976 612025496787 680862720352 720913468608 765970560396 768031995968 816033995716 864035995464 1021294080528 1152047993952 1224050993574 1361725440704 1531941120792 1632067991432 1728071990928 1836076490361 2042588161056 2304095987904 2448101987148 3063882241584 3264135982864 3456143981856 3468144481793 3672152980722 4085176322112 4896203974296 6127764483168 6528271965728 6912287963712 6936288963586 7344305961444 9792407948592 10404433445379 12255528966336 13056543931456 13872577927172 14688611922888 19584815897184 20808866890758 27745155854344 29377223845776 31213300336137 39169631794368 41617733781516 55490311708688 58754447691552 62426600672274 83235467563032 110980623417376 117508895383104 124853201344548 166470935126064 221961246834752 249706402689096 332941870252128 499412805378192 665883740504256 998825610756384 1997651221512768
• Sum of all divisors σ(n): 6121256578171020
• Sum of proper divisors (its aliquot sum) s(n): 4123605356658252
• 1997651221512768 is an abundant number, because the sum of its proper divisors (4123605356658252) is greater than itself. Its abundance is 2125954135145484

Bases of 1997651221512768

• Binary: 111000110001101101001101011011100011000001001000000₂
• Hexadecimal: 0x718DA6B718240
• Base-36: JO3WAVGNK0

Squares and roots of 1997651221512768

• 1997651221512768 squared (1997651221512768²) is 3990610402811454083842387021824
• 1997651221512768 cubed (1997651221512768³) is 7971847745757860398402004493364960355510648832
• The square root of 1997651221512768 is 44695091.6937505341
• The cube root of 1997651221512768 is 125942.7644118023

Scales and comparisons

• 1,997,651,221,512,768 seconds is equal to 63,519,129 years, 36 weeks, 3 days, 22 hours, 52 minutes, 48 seconds.
• To count from 1 to 1,997,651,221,512,768 would take you about one hundred ninety million, five hundred fifty-seven thousand, three hundred eighty-nine 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 1997651221512768 cubic inches would be around 10495.2 feet tall.

Recreational maths with 1997651221512768

• 1997651221512768 backwards is 8672151221567991
• 1997651221512768 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1997651221512768's digits is 72
• More coming soon!