21382584819

Names of 21382584819

• Cardinal: 21382584819 can be written as Twenty-one billion, three hundred eighty-two million, five hundred eighty-four thousand, eight hundred nineteen.

Scientific notation

• Scientific notation: 2.1382584819 × 10¹⁰

Factors of 21382584819

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 453

Divisors of 21382584819

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 17 19 29 41 51 57 67 87 123 201 277 323 493 551 697 779 831 969 1139 1189 1273 1479 1653 1943 2091 2337 2747 3417 3567 3819 4709 5263 5829 8033 8241 9367 11357 13243 14127 15789 18559 20213 21641 22591 24099 28101 33031 34071 36917 39729 46699 52193 55677 60639 64923 67773 79663 89471 99093 110751 136561 140097 152627 156579 193069 215783 238989 268413 315503 329353 352621 384047 409683 457881 538211 579207 627589 647349 760919 887281 946509 988059 1057863 1152141 1354271 1513597 1614633 1882767 2282757 2594659 2661843 3668311 4062813 4540791 5599001 5994557 6257707 7783977 9149587 10226009 11004933 12935623 14457461 16797003 17983671 18773121 22066651 25731149 27448761 30678027 38806869 43372383 66199953 77193447 106381019 173842153 245776837 319143057 375133067 419266369 521526459 737330511 1125399201 1257799107 7127528273 21382584819
• Sum of all divisors σ(n): 34299417600
• Sum of proper divisors (its aliquot sum) s(n): 12916832781
• 21382584819 is a deficient number, because the sum of its proper divisors (12916832781) is less than itself. Its deficiency is 8465752038

Bases of 21382584819

• Binary: 10011111010100000000101100111110011₂
• Hexadecimal: 0x4FA8059F3
• Base-36: 9TMN01F

Squares and roots of 21382584819

• 21382584819 squared (21382584819²) is 457214933541729262761
• 21382584819 cubed (21382584819³) is 9776437096969474036921420625259
• The square root of 21382584819 is 146227.8524050737
• The cube root of 21382584819 is 2775.5777740869

Scales and comparisons

• 21,382,584,819 seconds is equal to 679 years, 46 weeks, 5 days, 14 hours, 53 minutes, 39 seconds.
• To count from 1 to 21,382,584,819 would take you about one thousand, three hundred fifty-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 21382584819 cubic inches would be around 231.3 feet tall.

Recreational maths with 21382584819

• 21382584819 backwards is 91848528312
• 21382584819 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21382584819's digits is 51
• More coming soon!