21478386120993

Names of 21478386120993

• Cardinal: 21478386120993 can be written as Twenty-one trillion, four hundred seventy-eight billion, three hundred eighty-six million, one hundred twenty thousand, nine hundred ninety-three.

Scientific notation

• Scientific notation: 2.1478386120993 × 10¹³

Factors of 21478386120993

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6806

Divisors of 21478386120993

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 27 37 43 67 81 111 127 129 201 243 333 381 387 603 999 1143 1161 1591 1809 2479 2881 2997 3429 3483 4699 4773 5427 5461 6529 7437 8509 8643 8991 10287 10449 14097 14319 16281 16383 19587 22311 25527 25929 30861 42291 42957 49149 58761 66933 76581 77787 106597 126873 128871 147447 176283 200799 202057 229743 233361 241573 280747 314833 319791 365887 380619 386613 437443 442341 528849 602397 606171 689229 700083 724719 829183 842241 944499 959373 1097661 1141857 1312329 1327023 1586547 1818513 2067687 2174157 2487549 2526723 2833497 2878119 3292983 3936987 5455539 6522471 7462647 7580169 8500491 8634357 9878949 10387639 11810961 13537819 16185391 16366617 18810049 19567413 22387941 22740507 25501473 25903071 29636847 30679771 31162917 35432883 35654869 40613457 48556173 49099851 55555261 56430147 58702239 67163823 68221521 76504419 88910541 92039313 93488751 106298649 106964607 121840371 145668519 166665783 169290441 201491469 276117939 280466253 320893821 365521113 437005557 499997349 507871323 695971813 828353817 841398759 962681463 1096563339 1311016671 1319230153 1499992047 1523613969 2055544657 2087915439 2388876223 2485061451 2524196277 2888044389 3289690017 3933050013 3957690459 4499976141 4570841907 6166633971 6263746317 7166628669 7455184353 8664133167 11873071377 13499928423 18499901913 18791238951 21499886007 35619214131 55499705739 56373716853 64499658021 88388420251 106857642393 166499117217 169121150559 193498974063 265165260753 320572927179 499497351651 580496922189 795495782259 2386487346777 7159462040331 21478386120993
• Sum of all divisors σ(n): 34591525928960
• Sum of proper divisors (its aliquot sum) s(n): 13113139807967
• 21478386120993 is a deficient number, because the sum of its proper divisors (13113139807967) is less than itself. Its deficiency is 8365246313026

Bases of 21478386120993

• Binary: 100111000100011010011100100110011100100100001₂
• Hexadecimal: 0x1388D3933921
• Base-36: 7M318JH29

Squares and roots of 21478386120993

• 21478386120993 squared (21478386120993²) is 461321070362464729235306049
• 21478386120993 cubed (21478386120993³) is 9908432074994797632267083132924298786657
• The square root of 21478386120993 is 4634477.9771828671
• The cube root of 21478386120993 is 27797.1677846331

Scales and comparisons

• 21,478,386,120,993 seconds is equal to 682,946 years, 12 weeks, 3 days, 22 hours, 56 minutes, 33 seconds.
• To count from 1 to 21,478,386,120,993 would take you about one million, seven hundred seven thousand, three hundred sixty-five 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 21478386120993 cubic inches would be around 2316.4 feet tall.

Recreational maths with 21478386120993

• 21478386120993 backwards is 39902168387412
• The number of decimal digits it has is: 14
• The sum of 21478386120993's digits is 63
• More coming soon!