21137808384

Names of 21137808384

• Cardinal: 21137808384 can be written as Twenty-one billion, one hundred thirty-seven million, eight hundred eight thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 2.1137808384 × 10¹⁰

Factors of 21137808384

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 9952

Divisors of 21137808384

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 32 33 36 42 44 48 54 56 63 64 66 72 77 84 88 96 99 108 112 126 128 132 144 154 168 176 189 192 198 216 224 231 252 256 264 288 297 308 336 352 378 384 396 432 448 462 504 512 528 576 594 616 672 693 704 756 768 792 864 896 924 1008 1024 1056 1152 1188 1232 1344 1386 1408 1512 1536 1584 1728 1792 1848 2016 2079 2112 2304 2376 2464 2688 2772 2816 3024 3072 3168 3456 3584 3696 4032 4158 4224 4608 4752 4928 5376 5544 5632 6048 6336 6912 7168 7392 8064 8316 8448 9216 9504 9856 9929 10752 11088 11264 12096 12672 13824 14784 16128 16632 16896 19008 19712 19858 21504 22176 24192 25344 27648 29568 29787 32256 33264 33792 38016 39424 39716 44352 48384 50688 59136 59574 64512 66528 69503 76032 78848 79432 88704 89361 96768 101376 109219 118272 119148 133056 139006 152064 158864 177408 178722 193536 208509 218438 236544 238296 266112 268083 278012 304128 317728 327657 354816 357444 417018 436876 476592 532224 536166 556024 625527 635456 655314 709632 714888 764533 834036 873752 953184 982971 1064448 1072332 1112048 1251054 1270912 1310628 1429776 1529066 1668072 1747504 1876581 1906368 1965942 2128896 2144664 2224096 2293599 2502108 2541824 2621256 2859552 2948913 3058132 3336144 3495008 3753162 3812736 3931884 4289328 4448192 4587198 5004216 5083648 5242512 5719104 5897826 6116264 6672288 6880797 6990016 7506324 7625472 7863768 8578656 8896384 9174396 10008432 10167296 10485024 11438208 11795652 12232528 13344576 13761594 13980032 15012648 15250944 15727536 17157312 17792768 18348792 20016864 20642391 20970048 22876416 23591304 24465056 26689152 27523188 27960064 30025296 30501888 31455072 34314624 35585536 36697584 40033728 41284782 41940096 45752832 47182608 48930112 53378304 55046376 55920128 60050592 62910144 68629248 71171072 73395168 80067456 82569564 83880192 91505664 94365216 97860224 106756608 110092752 111840256 120101184 125820288 137258496 146790336 160134912 165139128 167760384 188730432 195720448 213513216 220185504 240202368 251640576 274516992 293580672 320269824 330278256 335520768 377460864 391440896 440371008 480404736 503281152 587161344 640539648 660556512 754921728 782881792 880742016 960809472 1006562304 1174322688 1321113024 1509843456 1761484032 1921618944 2348645376 2642226048 3019686912 3522968064 5284452096 7045936128 10568904192 21137808384
• Sum of all divisors σ(n): 78054566400
• Sum of proper divisors (its aliquot sum) s(n): 56916758016
• 21137808384 is an abundant number, because the sum of its proper divisors (56916758016) is greater than itself. Its abundance is 35778949632

Bases of 21137808384

• Binary: 10011101011111010010101110000000000₂
• Hexadecimal: 0x4EBE95C00
• Base-36: 9PKWLC0

Squares and roots of 21137808384

• 21137808384 squared (21137808384²) is 446806943278700691456
• 21137808384 cubed (21137808384³) is 9444519551665931924485233967104
• The square root of 21137808384 is 145388.4740411013
• The cube root of 21137808384 is 2764.9459895905

Scales and comparisons

• 21,137,808,384 seconds is equal to 672 years, 6 weeks, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 21,137,808,384 would take you about one thousand, three hundred forty-four 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 21137808384 cubic inches would be around 230.4 feet tall.

Recreational maths with 21137808384

• 21137808384 backwards is 48380873112
• The number of decimal digits it has is: 11
• The sum of 21137808384's digits is 45
• More coming soon!