21397649916141471

Names of 21397649916141471

• Cardinal: 21397649916141471 can be written as Twenty-one quadrillion, three hundred ninety-seven trillion, six hundred forty-nine billion, nine hundred sixteen million, one hundred forty-one thousand, four hundred seventy-one.

Scientific notation

• Scientific notation: 2.1397649916141471 × 10¹⁶

Factors of 21397649916141471

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 374

Divisors of 21397649916141471

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 21 49 107 147 257 321 343 749 771 1029 1799 2247 5243 5397 11449 12593 15729 27499 34347 36701 37779 66049 80143 82497 88151 110103 192493 198147 240429 264453 462343 561001 577479 1225043 1347451 1387029 1683003 2942393 3236401 3675129 3927007 4042353 7067243 8575301 8827179 9432157 9709203 11781021 16974593 20596751 21201729 22654807 25725903 28296471 49470701 50923779 60027107 61790253 67964421 118822151 144177257 148412103 180081321 314836051 346294907 356466453 420189749 432531771 756195001 831755057 944508153 1009240799 1038884721 1260569247 1816281451 2203852357 2268585003 2424064349 2495265171 3027722397 5293365007 5448844353 5822285399 6611557071 7272193047 12713970157 15426966499 15880095021 17466856197 37053555049 38141910471 46280899497 80912865107 88997791099 107988765493 111160665147 194342115257 242738595321 259374885343 266993373297 323966296479 566390055749 583026345771 622984537693 778124656029 1360394806799 1699170167247 1868953613079 3964730390243 4081184420397 9522763647593 11894191170729 20794606332499 27753112731701 28568290942779 62383818997497 66659345533151 83259338195103 145562244327493 199978036599453 436686732982479 1018935710292451 3056807130877353 7132549972047157 21397649916141471
• Sum of all divisors σ(n): 33716443104000000
• Sum of proper divisors (its aliquot sum) s(n): 12318793187858529
• 21397649916141471 is a deficient number, because the sum of its proper divisors (12318793187858529) is less than itself. Its deficiency is 9078856728282942

Bases of 21397649916141471

• Binary: 1001100000001010000110010011010010001111001111110011111₂
• Hexadecimal: 0x4C050C9A479F9F
• Base-36: 5UOU0O14DR3

Squares and roots of 21397649916141471

• 21397649916141471 squared (21397649916141471²) is 457859421933749100918552886043841
• 21397649916141471 cubed (21397649916141471³) is 9797115621345268837115338103953600541308864230111
• The square root of 21397649916141471 is 146279355.7414766269
• The cube root of 21397649916141471 is 277622.9465371839

Scales and comparisons

• 21,397,649,916,141,471 seconds is equal to 680,379,080 years, 2 weeks, 6 days, 12 hours, 37 minutes, 51 seconds.
• To count from 1 to 21,397,649,916,141,471 would take you about two billion, forty-one million, one hundred thirty-seven thousand, two hundred forty 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 21397649916141471 cubic inches would be around 23135.2 feet tall.

Recreational maths with 21397649916141471

• 21397649916141471 backwards is 17414161994679312
• The number of decimal digits it has is: 17
• The sum of 21397649916141471's digits is 75
• More coming soon!