21384874680

Names of 21384874680

• Cardinal: 21384874680 can be written as Twenty-one billion, three hundred eighty-four million, eight hundred seventy-four thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.138487468 × 10¹⁰

Factors of 21384874680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 192

Divisors of 21384874680

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 19 20 23 24 26 30 38 39 40 46 52 57 60 65 69 76 78 92 95 104 114 115 120 127 130 138 152 156 169 184 190 195 228 230 247 254 260 276 285 299 312 338 345 361 380 381 390 437 456 460 494 507 508 520 552 570 598 635 676 690 722 741 760 762 780 845 874 897 920 988 1014 1016 1083 1140 1196 1235 1270 1311 1352 1380 1444 1482 1495 1524 1560 1651 1690 1748 1794 1805 1905 1976 2028 2166 2185 2280 2392 2413 2470 2535 2540 2622 2760 2888 2921 2964 2990 3048 3211 3302 3380 3496 3588 3610 3705 3810 3887 4056 4332 4370 4485 4693 4826 4940 4953 5070 5080 5244 5415 5681 5842 5928 5980 6422 6555 6604 6760 7176 7220 7239 7410 7620 7774 8255 8303 8664 8740 8763 8970 9386 9633 9652 9880 9906 10140 10488 10830 11362 11661 11684 11960 12065 12844 13110 13208 14079 14440 14478 14605 14820 15240 15548 16055 16510 16606 17043 17480 17526 17940 18772 19266 19304 19435 19812 20280 21463 21660 22724 23322 23368 23465 24130 24765 24909 25688 26220 28158 28405 28956 29210 29640 31096 31369 32110 33020 33212 34086 35052 35880 36195 37544 37973 38532 38870 39624 41515 42926 43320 43815 45448 45847 46644 46930 48165 48260 49530 49818 52440 55499 56316 56810 57912 58305 58420 61009 62738 64220 64389 66040 66424 68172 70104 70395 72390 73853 75946 77064 77740 83030 85215 85852 87630 91694 93288 93860 94107 96330 96520 99060 99636 107315 107939 110998 112632 113620 113919 116610 116840 122018 124545 125476 128440 128778 136344 137541 140790 144780 147706 151892 155480 156845 166060 166497 170430 171704 175260 183027 183388 187720 188214 189865 192660 198120 199272 214630 215878 221559 221996 227240 227838 229235 233220 244036 249090 250952 257556 275082 277495 281580 289560 295412 303784 305045 313690 321945 323817 332120 332994 340860 350520 366054 366776 369265 376428 379730 385320 407797 429260 431756 443118 443992 455676 458470 466440 470535 488072 493649 498180 515112 539695 550164 554990 563160 569595 590824 596011 610090 627380 643890 647634 665988 681720 687705 721487 732108 738530 752856 759460 815594 832485 858520 863512 886236 911352 915135 916940 941070 987298 996360 1054481 1079390 1100328 1107795 1109980 1139190 1192022 1220180 1223391 1254760 1287780 1295268 1331976 1375410 1403207 1442974 1464216 1477060 1480947 1518920 1619085 1631188 1664970 1772472 1788033 1830270 1833880 1882140 1974596 2038985 2108962 2158780 2164461 2215590 2219960 2278380 2384044 2440360 2446782 2468245 2575560 2590536 2750820 2806414 2885948 2954120 2961894 2980055 3163443 3238170 3262376 3329940 3576066 3607435 3660540 3764280 3949192 4077970 4209621 4217924 4317560 4328922 4431180 4556760 4768088 4893564 4936490 5272405 5501640 5612828 5771896 5923788 5960110 6116955 6326886 6476340 6659880 7016035 7152132 7214870 7321080 7404735 7748143 8155940 8419242 8435848 8657844 8862360 8940165 9379331 9787128 9872980 10544810 10822305 11225656 11847576 11920220 12233910 12653772 12952680 13708253 14032070 14304264 14429740 14809470 15496286 15817215 16311880 16838484 17315688 17880330 18758662 19745960 21048105 21089620 21644610 23244429 23840440 24467820 25307544 27416506 28064140 28137993 28859480 29618940 30992572 31634430 33676968 35760660 37517324 38740715 41124759 42096210 42179240 43289220 46488858 46896655 48935640 54833012 56128280 56275986 59237880 61985144 63268860 68541265 71521320 75034648 77481430 82249518 84192420 86578440 92977716 93793310 109666024 112551972 116222145 126537720 137082530 140689965 154962860 164499036 168384840 178207289 185955432 187586620 205623795 225103944 232444290 274165060 281379930 309925720 328998072 356414578 375173240 411247590 464888580 534621867 548330120 562759860 712829156 822495180 891036445 929777160 1069243734 1125519720 1425658312 1644990360 1782072890 2138487468 2673109335 3564145780 4276974936 5346218670 7128291560 10692437340 21384874680
• Sum of all divisors σ(n): 77108060160
• Sum of proper divisors (its aliquot sum) s(n): 55723185480
• 21384874680 is an abundant number, because the sum of its proper divisors (55723185480) is greater than itself. Its abundance is 34338310800

Bases of 21384874680

• Binary: 10011111010101000110100101010111000₂
• Hexadecimal: 0x4FAA34AB8
• Base-36: 9TO02WO

Squares and roots of 21384874680

• 21384874680 squared (21384874680²) is 457312865079305102400
• 21384874680 cubed (21384874680³) is 9779578309272687876308567232000
• The square root of 21384874680 is 146235.6819657911
• The cube root of 21384874680 is 2775.6768494245

Scales and comparisons

• 21,384,874,680 seconds is equal to 679 years, 50 weeks, 4 days, 2 hours, 58 minutes.
• To count from 1 to 21,384,874,680 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 21384874680 cubic inches would be around 231.3 feet tall.

Recreational maths with 21384874680

• 21384874680 backwards is 08647848312
• The number of decimal digits it has is: 11
• The sum of 21384874680's digits is 51
• More coming soon!