21481413520

Names of 21481413520

• Cardinal: 21481413520 can be written as Twenty-one billion, four hundred eighty-one million, four hundred thirteen thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.148141352 × 10¹⁰

Factors of 21481413520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 684

Divisors of 21481413520

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 56 61 68 70 71 80 85 112 119 122 136 140 142 170 238 244 272 280 284 305 340 355 427 476 488 497 521 560 568 595 610 680 710 854 952 976 994 1037 1042 1136 1190 1207 1220 1360 1420 1708 1904 1988 2074 2084 2135 2380 2414 2440 2485 2605 2840 3416 3647 3976 4148 4168 4270 4331 4760 4828 4880 4970 5185 5210 5680 6035 6832 7259 7294 7952 8296 8336 8449 8540 8662 8857 9520 9656 9940 10370 10420 12070 14518 14588 16592 16898 17080 17324 17714 18235 19312 19880 20740 20840 21655 24140 29036 29176 30317 31781 33796 34160 34648 35428 36295 36470 36991 39760 41480 41680 42245 43310 44285 48280 58072 58352 60634 61999 63562 67592 69296 70856 72590 72940 73627 73982 82960 84490 86620 88570 96560 116144 121268 123998 127124 135184 141712 145180 145880 147254 147964 151585 158905 168980 173240 177140 184955 222467 242536 247996 254248 258937 290360 291760 294508 295928 303170 309995 317810 337960 346480 354280 368135 369910 444934 485072 495992 508496 515389 517874 540277 580720 589016 591856 606340 619990 628847 635620 675920 708560 736270 739820 889868 991984 1030778 1035748 1080554 1112335 1178032 1212680 1239980 1257694 1271240 1294685 1472540 1479640 1779736 2061556 2071496 2161108 2224670 2256451 2425360 2479960 2515388 2542480 2576945 2589370 2701385 2945080 2959280 3144235 3559472 3781939 4123112 4142992 4322216 4401929 4449340 4512902 4959920 5030776 5153890 5178740 5402770 5890160 6288470 7563878 8246224 8644432 8803858 8898680 9025804 10061552 10307780 10357480 10805540 11282255 12576940 15127756 15795157 17607716 17797360 18051608 18909695 20615560 20714960 21611080 22009645 22564510 25153880 30255512 31590314 35215432 36103216 37819390 38359667 41231120 43222160 44019290 45129020 50307760 60511024 63180628 70430864 75638780 76719334 78975785 88038580 90258040 126361256 151277560 153438668 157951570 176077160 180516080 191798335 252722512 268517669 302555120 306877336 315903140 352154320 383596670 537035338 613754672 631806280 767193340 1074070676 1263612560 1342588345 1534386680 2148141352 2685176690 3068773360 4296282704 5370353380 10740706760 21481413520
• Sum of all divisors σ(n): 62412291072
• Sum of proper divisors (its aliquot sum) s(n): 40930877552
• 21481413520 is an abundant number, because the sum of its proper divisors (40930877552) is greater than itself. Its abundance is 19449464032

Bases of 21481413520

• Binary: 10100000000011001000101101110010000₂
• Hexadecimal: 0x500645B90
• Base-36: 9V9H8R4

Squares and roots of 21481413520

• 21481413520 squared (21481413520²) is 461451126817238790400
• 21481413520 cubed (21481413520³) is 9912622474431067921167006208000
• The square root of 21481413520 is 146565.3899118069
• The cube root of 21481413520 is 2779.8473735713

Scales and comparisons

• 21,481,413,520 seconds is equal to 683 years, 2 weeks, 1 day, 11 hours, 18 minutes, 40 seconds.
• To count from 1 to 21,481,413,520 would take you about one thousand, three hundred sixty-six 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 21481413520 cubic inches would be around 231.7 feet tall.

Recreational maths with 21481413520

• 21481413520 backwards is 02531418412
• The number of decimal digits it has is: 11
• The sum of 21481413520's digits is 31
• More coming soon!