21405875589

Names of 21405875589

• Cardinal: 21405875589 can be written as Twenty-one billion, four hundred five million, eight hundred seventy-five thousand, five hundred eighty-nine.

Scientific notation

• Scientific notation: 2.1405875589 × 10¹⁰

Factors of 21405875589

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 412

Divisors of 21405875589

• Number of divisors d(n): 224
• Complete list of divisors:
  1 3 7 9 19 21 23 27 29 57 63 69 81 87 133 161 171 189 203 207 243 261 331 399 437 483 513 551 567 609 621 667 729 783 993 1197 1311 1449 1539 1653 1701 1827 1863 2001 2317 2349 2979 3059 3591 3857 3933 4347 4617 4669 4959 5103 5481 5589 6003 6289 6951 7047 7613 8937 9177 9599 10773 11571 11799 12673 13041 13851 14007 14877 16443 16767 18009 18867 20853 21141 22839 26811 27531 28797 32319 34713 35397 38019 39123 42021 44023 44631 49329 53291 54027 56601 62559 67193 68517 80433 82593 86391 88711 96957 104139 106191 114057 117369 126063 132069 133893 144647 147987 159873 162081 169803 182381 187677 201579 205551 220777 241299 247779 259173 266133 312417 318573 342171 378189 396207 401679 433941 479619 486243 509409 547143 563031 604737 616653 662331 743337 777519 798399 937251 1012529 1026513 1134567 1188621 1276667 1301823 1438857 1528227 1545439 1641429 1689093 1814211 1849959 1986993 2230011 2332557 2395197 2811753 3037587 3079539 3403701 3565863 3830001 3905469 4194763 4316571 4584681 4636317 4924287 5442633 5549877 5960979 6997671 7185591 9112761 9238617 10697589 11490003 11716407 12584289 12949713 13908951 14772861 16327899 17882937 21556773 27338283 29363341 32092767 34470009 35149221 37752867 38849139 41726853 44318583 48983697 53648811 64670319 82014849 88090023 103410027 105447663 113258601 125180559 132955749 160946433 246044547 264270069 310230081 339775803 375541677 738133641 792810207 930690243 1019327409 1126625031 2378430621 3057982227 7135291863 21405875589
• Sum of all divisors σ(n): 41803315200
• Sum of proper divisors (its aliquot sum) s(n): 20397439611
• 21405875589 is a deficient number, because the sum of its proper divisors (20397439611) is less than itself. Its deficiency is 1008435978

Bases of 21405875589

• Binary: 10011111011111000111011110110000101₂
• Hexadecimal: 0x4FBE3BD85
• Base-36: 9U0I7B9

Squares and roots of 21405875589

• 21405875589 squared (21405875589²) is 458211509731746096921
• 21405875589 cubed (21405875589³) is 9808418570765619714427261961469
• The square root of 21405875589 is 146307.4693547805
• The cube root of 21405875589 is 2776.5851653331

Scales and comparisons

• 21,405,875,589 seconds is equal to 680 years, 33 weeks, 2 days, 4 hours, 33 minutes, 9 seconds.
• To count from 1 to 21,405,875,589 would take you about one thousand, three hundred sixty-one 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 21405875589 cubic inches would be around 231.4 feet tall.

Recreational maths with 21405875589

• 21405875589 backwards is 98557850412
• The number of decimal digits it has is: 11
• The sum of 21405875589's digits is 54
• More coming soon!