21972978027

Names of 21972978027

• Cardinal: 21972978027 can be written as Twenty-one billion, nine hundred seventy-two million, nine hundred seventy-eight thousand and twenty-seven.

Scientific notation

• Scientific notation: 2.1972978027 × 10¹⁰

Factors of 21972978027

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 187

Divisors of 21972978027

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 7 9 11 13 21 27 33 37 39 43 49 63 73 77 91 99 111 117 129 143 147 189 219 231 259 273 297 301 333 351 387 407 429 441 473 481 511 539 559 637 657 693 777 803 819 903 949 999 1001 1161 1221 1287 1323 1419 1443 1533 1591 1617 1677 1813 1911 1971 2079 2107 2331 2409 2457 2701 2709 2847 2849 3003 3139 3311 3367 3577 3663 3861 3913 4257 4329 4599 4773 4851 5031 5291 5439 5621 5733 6149 6321 6643 6993 7007 7227 8103 8127 8541 8547 9009 9417 9933 10101 10439 10731 10989 11137 11739 12771 12987 13797 14319 14553 15093 15873 16317 16863 17199 17501 18447 18907 18963 19929 19943 20683 21021 21681 21973 23177 23569 24309 25623 25641 27027 27391 28251 29711 29799 30303 31317 32193 33411 34529 35113 35217 37037 39347 40807 42957 43043 46501 47619 48951 50589 52503 55341 56721 56889 59787 59829 62049 63063 65919 69531 70707 72927 73073 76923 77959 82173 84753 89133 89397 90909 93951 96579 100233 103587 105339 105651 111111 116143 118041 122421 122507 129129 132349 139503 142857 144781 151767 153811 157509 166023 170163 179361 179487 186147 189189 197757 207977 208593 212121 219219 227513 233877 241703 245791 246519 259259 267399 281853 285649 300699 301301 310761 316017 333333 348429 354123 367263 367521 386243 387387 397047 418509 434343 448877 461433 472527 510489 511511 538461 558441 593271 623931 625779 636363 657657 682539 701631 725109 737373 739557 777777 802197 813001 856947 857549 903903 932283 948051 999999 1013467 1045287 1062369 1101789 1102563 1158729 1162161 1191141 1255527 1277573 1303029 1346631 1384299 1455839 1509859 1534533 1592591 1691921 1720537 1871793 1972971 1999543 2047617 2104893 2175327 2212119 2333331 2439003 2570841 2572647 2703701 2711709 3040401 3135861 3142139 3307689 3476187 3573423 3832719 3909087 4039893 4152897 4367517 4529577 4603599 4777773 5075763 5161611 5615379 5691007 5998629 6142851 6525981 6636357 6999993 7317009 7712523 7717941 8111103 8135127 8943011 9121203 9426417 10428561 10569013 11148137 11498157 12119679 13102551 13588731 13810797 14333319 15227289 15484833 16608449 17073021 17995887 18925907 21951027 21994973 23153823 24333309 26829033 27363609 28279251 31707039 33444411 34494471 39307653 40766193 42999957 45681867 46454499 49825347 51219063 53987661 56777721 62601077 65984919 72999927 73983091 80487099 84837753 95121117 100333233 116259143 149476041 153657189 170333163 187803231 197954757 221949273 241461297 285363351 300999699 348777429 448428123 510999489 563409693 593864271 665847819 813814001 1046332287 1690229079 1997543457 2441442003 3138996861 7324326009 21972978027
• Sum of all divisors σ(n): 47392773120
• Sum of proper divisors (its aliquot sum) s(n): 25419795093
• 21972978027 is an abundant number, because the sum of its proper divisors (25419795093) is greater than itself. Its abundance is 3446817066

Bases of 21972978027

• Binary: 10100011101101100010000100101101011₂
• Hexadecimal: 0x51DB1096B
• Base-36: A3E56CR

Squares and roots of 21972978027

• 21972978027 squared (21972978027²) is 482811763375024812729
• 21972978027 cubed (21972978027³) is 10608812267816543570674106905683
• The square root of 21972978027 is 148232.8507011857
• The cube root of 21972978027 is 2800.8916389509

Scales and comparisons

• 21,972,978,027 seconds is equal to 698 years, 34 weeks, 6 days, 21 hours, 27 seconds.
• To count from 1 to 21,972,978,027 would take you about one thousand, three hundred ninety-seven 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 21972978027 cubic inches would be around 233.4 feet tall.

Recreational maths with 21972978027

• 21972978027 backwards is 72087927912
• The number of decimal digits it has is: 11
• The sum of 21972978027's digits is 54
• More coming soon!