21279760128

Names of 21279760128

• Cardinal: 21279760128 can be written as Twenty-one billion, two hundred seventy-nine million, seven hundred sixty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1279760128 × 10¹⁰

Factors of 21279760128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3262

Divisors of 21279760128

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 29 32 33 36 44 48 54 58 64 66 72 81 87 88 96 99 108 116 128 132 144 162 174 176 192 198 216 232 256 261 264 288 297 319 324 348 352 384 396 432 464 522 528 576 594 638 648 696 704 768 783 792 864 891 928 957 1044 1056 1152 1188 1276 1296 1392 1408 1566 1584 1728 1782 1856 1914 2088 2112 2304 2349 2376 2552 2592 2784 2816 2871 3132 3168 3217 3456 3564 3712 3828 4176 4224 4698 4752 5104 5184 5568 5742 6264 6336 6434 6912 7128 7424 7656 8352 8448 8613 9396 9504 9651 10208 10368 11136 11484 12528 12672 12868 14256 15312 16704 17226 18792 19008 19302 20416 20736 22272 22968 25056 25344 25736 25839 28512 28953 30624 33408 34452 35387 37584 38016 38604 40832 45936 50112 51472 51678 57024 57906 61248 66816 68904 70774 75168 76032 77208 81664 86859 91872 93293 100224 102944 103356 106161 114048 115812 122496 137808 141548 150336 154416 173718 183744 186586 200448 205888 206712 212322 228096 231624 244992 260577 275616 279879 283096 300672 308832 318483 347436 367488 373172 411776 413424 424644 463248 521154 551232 559758 566192 601344 617664 636966 694872 734976 746344 823552 826848 839637 849288 926496 955449 1026223 1042308 1102464 1119516 1132384 1235328 1273932 1389744 1492688 1653696 1679274 1698576 1852992 1910898 2052446 2084616 2204928 2239032 2264768 2470656 2518911 2547864 2779488 2866347 2985376 3078669 3307392 3358548 3397152 3705984 3821796 4104892 4169232 4478064 4529536 5037822 5095728 5558976 5732694 5970752 6157338 6614784 6717096 6794304 7411968 7556733 7643592 8209784 8338464 8956128 9059072 9236007 10075644 10191456 11117952 11465388 11941504 12314676 13434192 13588608 15113466 15287184 16419568 16676928 17912256 18472014 20151288 20382912 22235904 22930776 23883008 24629352 26868384 27177216 27708021 30226932 30574368 32839136 33353856 35824512 36944028 40302576 40765824 45861552 49258704 53736768 55416042 60453864 61148736 65678272 66707712 71649024 73888056 80605152 81531648 83124063 91723104 98517408 107473536 110832084 120907728 122297472 131356544 147776112 161210304 166248126 183446208 197034816 214947072 221664168 241815456 244594944 262713088 295552224 322420608 332496252 366892416 394069632 443328336 483630912 591104448 644841216 664992504 733784832 788139264 886656672 967261824 1182208896 1329985008 1773313344 1934523648 2364417792 2659970016 3546626688 5319940032 7093253376 10639880064 21279760128
• Sum of all divisors σ(n): 71629976880
• Sum of proper divisors (its aliquot sum) s(n): 50350216752
• 21279760128 is an abundant number, because the sum of its proper divisors (50350216752) is greater than itself. Its abundance is 29070456624

Bases of 21279760128

• Binary: 10011110100010111110101111100000000₂
• Hexadecimal: 0x4F45F5F00
• Base-36: 9RXF400

Squares and roots of 21279760128

• 21279760128 squared (21279760128²) is 452828191105218576384
• 21279760128 cubed (21279760128³) is 9636075285915194514461165617152
• The square root of 21279760128 is 145875.8380541479
• The cube root of 21279760128 is 2771.1215521997

Scales and comparisons

• 21,279,760,128 seconds is equal to 676 years, 32 weeks, 5 days, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,279,760,128 would take you about one thousand, three hundred fifty-three 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 21279760128 cubic inches would be around 230.9 feet tall.

Recreational maths with 21279760128

• 21279760128 backwards is 82106797212
• The number of decimal digits it has is: 11
• The sum of 21279760128's digits is 45
• More coming soon!