21408832445

Names of 21408832445

• Cardinal: 21408832445 can be written as Twenty-one billion, four hundred eight million, eight hundred thirty-two thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 2.1408832445 × 10¹⁰

Factors of 21408832445

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 113

Divisors of 21408832445

• Number of divisors d(n): 288
• Complete list of divisors:
  1 5 7 11 13 17 19 35 41 55 65 77 85 91 95 119 133 143 187 205 209 221 247 287 289 323 361 385 451 455 533 595 665 697 715 779 935 1001 1045 1105 1235 1309 1435 1445 1463 1547 1615 1729 1805 2023 2255 2261 2431 2527 2665 2717 3157 3179 3485 3553 3731 3757 3895 3971 4199 4693 4879 5005 5453 5491 5863 6137 6545 7315 7667 7735 8569 8645 9061 10115 10127 11305 11849 12155 12635 13243 13585 14801 15785 15895 17017 17765 18655 18785 19019 19855 20995 22253 23465 24395 24871 26299 27265 27455 27797 29315 29393 30685 32851 38335 38437 41041 41327 42845 42959 45305 46189 50635 51623 53669 59245 59983 60401 63427 66215 67507 70889 71383 74005 79781 82943 85085 92701 95095 99671 103607 104329 111265 111397 124355 130339 131495 138985 145673 146965 154037 162811 164255 172159 192185 192413 205205 206635 214795 225131 230945 251617 258115 268345 289289 299915 302005 317135 323323 337535 354445 356915 361361 398905 414715 422807 463505 472549 498355 499681 518035 521645 556985 558467 651695 697697 728365 730303 770185 779779 785213 814055 860795 877591 912373 962065 1019711 1078259 1125655 1139677 1147619 1205113 1258085 1346891 1356277 1446445 1575917 1616615 1694407 1761319 1806805 1893749 2114035 2116543 2362745 2476441 2498405 2767787 2792335 2926703 3271021 3488485 3651515 3898895 3926065 4277489 4387955 4561865 5098555 5391295 5496491 5698385 5738095 6025565 6143137 6734455 6781385 7879585 8033333 8472035 8806595 9468745 9493939 10582715 11860849 12382205 13256243 13838935 14633515 14815801 14919047 16355105 17335087 19374509 20486921 21387445 22897147 27482455 29942423 30715685 32193733 35981231 40166665 47052379 47469695 55607357 59304245 66281215 74079005 74595235 86675435 96872545 102434605 104433329 114485735 149712115 160968665 179906155 225356131 235261895 251868617 278036785 329366653 389251499 522166645 611680927 1126780655 1259343085 1646833265 1946257495 3058404635 4281766489 21408832445
• Sum of all divisors σ(n): 39615319296
• Sum of proper divisors (its aliquot sum) s(n): 18206486851
• 21408832445 is a deficient number, because the sum of its proper divisors (18206486851) is less than itself. Its deficiency is 3202345594

Bases of 21408832445

• Binary: 10011111100000100001101101110111101₂
• Hexadecimal: 0x4FC10DBBD
• Base-36: 9U29KU5

Squares and roots of 21408832445

• 21408832445 squared (21408832445²) is 458338106658084678025
• 21408832445 cubed (21408832445³) is 9812483728601473776458998521125
• The square root of 21408832445 is 146317.5739444855
• The cube root of 21408832445 is 2776.7130053815

Scales and comparisons

• 21,408,832,445 seconds is equal to 680 years, 38 weeks, 1 day, 9 hours, 54 minutes, 5 seconds.
• To count from 1 to 21,408,832,445 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 21408832445 cubic inches would be around 231.4 feet tall.

Recreational maths with 21408832445

• 21408832445 backwards is 54423880412
• 21408832445 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21408832445's digits is 41
• More coming soon!