21979379968

Names of 21979379968

• Cardinal: 21979379968 can be written as Twenty-one billion, nine hundred seventy-nine million, three hundred seventy-nine thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1979379968 × 10¹⁰

Factors of 21979379968

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 208

Divisors of 21979379968

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 19 23 26 28 32 34 38 46 52 56 64 68 76 91 92 104 112 119 127 128 133 136 152 161 182 184 208 221 224 238 247 254 256 266 272 299 304 322 323 364 368 391 416 437 442 448 476 494 508 532 544 598 608 644 646 728 736 782 832 874 884 889 896 952 988 1016 1064 1088 1196 1216 1288 1292 1456 1472 1547 1564 1651 1664 1729 1748 1768 1778 1792 1904 1976 2032 2093 2128 2159 2176 2261 2392 2413 2432 2576 2584 2737 2912 2921 2944 3059 3094 3128 3302 3328 3458 3496 3536 3556 3808 3952 4064 4186 4199 4256 4318 4352 4522 4784 4826 4864 5083 5152 5168 5474 5681 5824 5842 5888 6118 6188 6256 6604 6916 6992 7072 7112 7429 7616 7904 8128 8372 8398 8512 8636 9044 9568 9652 10166 10304 10336 10948 11362 11557 11648 11684 12236 12376 12512 13208 13832 13984 14144 14224 14858 15113 15232 15808 16256 16744 16796 16891 17024 17272 18088 19136 19304 20332 20447 20608 20672 21896 22724 23114 23296 23368 24472 24752 25024 26416 27664 27968 28067 28288 28448 29393 29716 30226 30464 31369 31616 32512 33488 33592 33782 34048 34544 35581 36176 37973 38272 38608 39767 40664 40894 41021 41216 41344 43792 45448 46228 46736 48944 49504 49657 50048 52003 52832 55328 55499 55936 56134 56576 56896 58786 59432 60452 62738 63232 66976 67184 67564 69088 71162 72352 75946 76544 77216 79534 81328 81788 82042 82688 87584 90896 92456 93472 96577 97888 99008 99314 100096 104006 105664 110656 110998 111872 112268 113792 117572 118864 120904 125476 133952 134368 135128 138176 142324 144704 151892 154432 159068 162656 163576 164084 175168 181792 184912 186944 193154 195776 196469 198016 198628 208012 211328 219583 221312 221996 224536 227584 235144 237728 241808 250952 265811 267904 268736 270256 276352 284648 287147 289408 303784 308864 318136 325312 327152 328168 347599 350336 363584 369824 373888 386308 388493 391552 392938 396032 397256 416024 422656 439166 442624 443992 449072 470288 475456 483616 501904 531622 533273 535808 537472 540512 552704 569296 574294 578816 607568 617728 636272 645541 650624 654304 656336 676039 695198 700672 721487 727168 739648 747776 772616 776986 783104 785876 794512 832048 878332 887984 898144 940576 943483 950912 967232 1003808 1063244 1066546 1074944 1081024 1138592 1148588 1215136 1272544 1291082 1301248 1308608 1312672 1352078 1390396 1442974 1454336 1479296 1545232 1553972 1571752 1589024 1664096 1756664 1775968 1796288 1881152 1886966 1901824 1934464 2007616 2126488 2133092 2162048 2277184 2297176 2430272 2545088 2582164 2617216 2625344 2704156 2780792 2885948 2958592 3090464 3107944 3143504 3178048 3328192 3513328 3551936 3592576 3732911 3762304 3773932 3868928 4015232 4252976 4266184 4324096 4518787 4554368 4594352 4860544 5050409 5090176 5164328 5234432 5250688 5408312 5561584 5771896 6180928 6215888 6287008 6356096 6604381 6656384 7026656 7103872 7185152 7465822 7524608 7547864 8030464 8505952 8532368 9037574 9108736 9188704 9721088 10100818 10180352 10328656 10501376 10816624 11123168 11543792 12265279 12361856 12431776 12574016 12712192 13208762 13312768 14053312 14207744 14931644 15095728 17011904 17064736 18075148 18377408 20201636 20657312 21633248 22246336 23087584 24530558 24723712 24863552 25148032 26417524 28106624 29863288 30191456 34023808 34129472 36150296 36754816 40403272 41314624 43266496 44492672 46175168 49061116 49727104 50296064 52835048 56213248 59726576 60382912 68047616 68258944 72300592 73509632 80806544 82629248 85856953 86532992 88985344 92350336 98122232 99454208 105670096 119453152 120765824 136517888 144601184 161613088 165258496 171713906 173065984 184700672 196244464 211340192 238906304 241531648 289202368 323226176 343427812 392488928 422680384 477812608 578404736 646452352 686855624 784977856 845360768 955625216 1156809472 1292904704 1373711248 1569955712 1690721536 2747422496 3139911424 5494844992 10989689984 21979379968
• Sum of all divisors σ(n): 63294013440
• Sum of proper divisors (its aliquot sum) s(n): 41314633472
• 21979379968 is an abundant number, because the sum of its proper divisors (41314633472) is greater than itself. Its abundance is 19335253504

Bases of 21979379968

• Binary: 10100011110000100101011100100000000₂
• Hexadecimal: 0x51E12B900
• Base-36: A3HYE4G

Squares and roots of 21979379968

• 21979379968 squared (21979379968²) is 483093143777719681024
• 21979379968 cubed (21979379968³) is 10618087767026155801818255327232
• The square root of 21979379968 is 148254.4433330751
• The cube root of 21979379968 is 2801.1636306347

Scales and comparisons

• 21,979,379,968 seconds is equal to 698 years, 45 weeks, 3 days, 23 hours, 19 minutes, 28 seconds.
• To count from 1 to 21,979,379,968 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 21979379968 cubic inches would be around 233.4 feet tall.

Recreational maths with 21979379968

• 21979379968 backwards is 86997397912
• The number of decimal digits it has is: 11
• The sum of 21979379968's digits is 70
• More coming soon!