21040386048

Names of 21040386048

• Cardinal: 21040386048 can be written as Twenty-one billion, forty million, three hundred eighty-six thousand and forty-eight.

Scientific notation

• Scientific notation: 2.1040386048 × 10¹⁰

Factors of 21040386048

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 158

Divisors of 21040386048

• Number of divisors d(n): 468
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 53 64 66 72 88 89 96 99 106 121 128 132 144 159 176 178 192 198 212 242 256 264 267 288 318 352 356 363 384 396 424 477 484 512 528 534 576 583 636 704 712 726 768 792 801 848 954 968 979 1024 1056 1068 1089 1152 1166 1272 1408 1424 1452 1536 1584 1602 1696 1749 1908 1936 1958 2048 2112 2136 2178 2304 2332 2544 2816 2848 2904 2937 3072 3168 3204 3392 3498 3816 3872 3916 4096 4224 4272 4356 4608 4664 4717 5088 5247 5632 5696 5808 5874 6144 6336 6408 6413 6784 6996 7632 7744 7832 8448 8544 8712 8811 9216 9328 9434 10176 10494 10769 11264 11392 11616 11748 12288 12672 12816 12826 13568 13992 14151 15264 15488 15664 16896 17088 17424 17622 18432 18656 18868 19239 20352 20988 21538 22528 22784 23232 23496 25344 25632 25652 27136 27984 28302 30528 30976 31328 32307 33792 34176 34848 35244 36864 37312 37736 38478 40704 41976 42453 43076 45056 45568 46464 46992 50688 51264 51304 51887 54272 55968 56604 57717 61056 61952 62656 64614 67584 68352 69696 70488 74624 75472 76956 81408 83952 84906 86152 91136 92928 93984 96921 101376 102528 102608 103774 108544 111936 113208 115434 122112 123904 125312 129228 135168 136704 139392 140976 149248 150944 153912 155661 162816 167904 169812 172304 182272 185856 187968 193842 202752 205056 205216 207548 217088 223872 226416 230868 244224 247808 250624 258456 273408 278784 281952 298496 301888 307824 311322 325632 335808 339624 344608 364544 371712 375936 387684 405504 410112 410432 415096 447744 452832 461736 466983 488448 495616 501248 516912 546816 557568 563904 570757 596992 603776 615648 622644 651264 671616 679248 689216 743424 751872 775368 820224 820864 830192 895488 905664 923472 933966 976896 1002496 1033824 1093632 1115136 1127808 1141514 1193984 1207552 1231296 1245288 1343232 1358496 1378432 1486848 1503744 1550736 1640448 1641728 1660384 1712271 1790976 1811328 1846944 1867932 1953792 2004992 2067648 2230272 2255616 2283028 2387968 2415104 2462592 2490576 2686464 2716992 2756864 3007488 3101472 3280896 3283456 3320768 3424542 3581952 3622656 3693888 3735864 4009984 4135296 4460544 4511232 4566056 4830208 4925184 4981152 5136813 5372928 5433984 5513728 6014976 6202944 6566912 6641536 6849084 7163904 7245312 7387776 7471728 8270592 9022464 9132112 9660416 9850368 9962304 10273626 10745856 10867968 11027456 12029952 12405888 13133824 13283072 13698168 14490624 14775552 14943456 16541184 18044928 18264224 19320832 19700736 19924608 20547252 21491712 21735936 22054912 24811776 26267648 26566144 27396336 28981248 29551104 29886912 33082368 36089856 36528448 39401472 39849216 41094504 43471872 44109824 49623552 53132288 54792672 57962496 59102208 59773824 66164736 73056896 78802944 79698432 82189008 86943744 99247104 106264576 109585344 118204416 119547648 132329472 146113792 159396864 164378016 173887488 198494208 212529152 219170688 236408832 239095296 292227584 318793728 328756032 396988416 438341376 478190592 584455168 637587456 657512064 876682752 956381184 1168910336 1315024128 1753365504 1912762368 2337820672 2630048256 3506731008 5260096512 7013462016 10520193024 21040386048
• Sum of all divisors σ(n): 68828481540
• Sum of proper divisors (its aliquot sum) s(n): 47788095492
• 21040386048 is an abundant number, because the sum of its proper divisors (47788095492) is greater than itself. Its abundance is 26747709444

Bases of 21040386048

• Binary: 10011100110000110101101000000000000₂
• Hexadecimal: 0x4E61AD000
• Base-36: 9NYWHS0

Squares and roots of 21040386048

• 21040386048 squared (21040386048²) is 442697845048873058304
• 21040386048 cubed (21040386048³) is 9314533562445974574062572142592
• The square root of 21040386048 is 145053.0456350365
• The cube root of 21040386048 is 2760.6916477067

Scales and comparisons

• 21,040,386,048 seconds is equal to 669 years, 6 days, 23 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,040,386,048 would take you about one thousand, three hundred thirty-eight 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 21040386048 cubic inches would be around 230.1 feet tall.

Recreational maths with 21040386048

• 21040386048 backwards is 84068304012
• 21040386048 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21040386048's digits is 36
• More coming soon!