21234996640

Names of 21234996640

• Cardinal: 21234996640 can be written as Twenty-one billion, two hundred thirty-four million, nine hundred ninety-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.123499664 × 10¹⁰

Factors of 21234996640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 777

Divisors of 21234996640

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 26 32 40 44 52 55 65 80 88 104 110 121 130 139 143 160 176 208 220 242 260 278 286 352 416 440 484 520 556 572 605 607 695 715 880 968 1040 1112 1144 1210 1214 1390 1430 1529 1573 1760 1807 1936 2080 2224 2288 2420 2428 2780 2860 3035 3058 3146 3614 3872 4448 4576 4840 4856 5560 5720 6070 6116 6292 6677 7228 7645 7865 7891 9035 9680 9712 11120 11440 12140 12232 12584 13354 14456 15290 15730 15782 16819 18070 19360 19424 19877 22240 22880 24280 24464 25168 26708 28912 30580 31460 31564 33385 33638 36140 39455 39754 48560 48928 50336 53416 57824 61160 62920 63128 66770 67276 72280 73447 78910 79508 84095 84373 86801 97120 99385 106832 122320 125840 126256 133540 134552 144560 146894 157820 159016 168190 168746 173602 198770 213664 218647 244640 251680 252512 267080 269104 289120 293788 315640 318032 336380 337492 347204 367235 397540 421865 434005 437294 534160 538208 587576 631280 636064 672760 674984 694408 734470 795080 843730 868010 874588 928103 954811 1068320 1093235 1096849 1175152 1262560 1345520 1349968 1388816 1468940 1590160 1687460 1736020 1749176 1856206 1909622 2186470 2193698 2350304 2691040 2699936 2777632 2937880 3180320 3374920 3472040 3498352 3712412 3819244 4372940 4387396 4640515 4774055 5484245 5875760 6749840 6944080 6996704 7424824 7638488 8745880 8774792 9281030 9548110 10209133 10968490 11751520 12065339 13499680 13888160 14849648 15276976 17491760 17549584 18562060 19096220 20418266 21936980 24130678 29699296 30553952 34983520 35099168 37124120 38192440 40836532 43873960 48261356 51045665 60326695 74248240 76384880 81673064 87747920 96522712 102091330 120653390 132718729 148496480 152769760 163346128 175495840 193045424 204182660 241306780 265437458 326692256 386090848 408365320 482613560 530874916 663593645 816730640 965227120 1061749832 1327187290 1633461280 1930454240 2123499664 2654374580 4246999328 5308749160 10617498320 21234996640
• Sum of all divisors σ(n): 59910520320
• Sum of proper divisors (its aliquot sum) s(n): 38675523680
• 21234996640 is an abundant number, because the sum of its proper divisors (38675523680) is greater than itself. Its abundance is 17440527040

Bases of 21234996640

• Binary: 10011110001101101000101010110100000₂
• Hexadecimal: 0x4F1B455A0
• Base-36: 9R6RO9S

Squares and roots of 21234996640

• 21234996640 squared (21234996640²) is 450925082300811289600
• 21234996640 cubed (21234996640³) is 9575392607549451203930066944000
• The square root of 21234996640 is 145722.3271842719
• The cube root of 21234996640 is 2769.1771044143

Scales and comparisons

• 21,234,996,640 seconds is equal to 675 years, 10 weeks, 5 days, 10 hours, 10 minutes, 40 seconds.
• To count from 1 to 21,234,996,640 would take you about one thousand, three hundred fifty 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 21234996640 cubic inches would be around 230.8 feet tall.

Recreational maths with 21234996640

• 21234996640 backwards is 04669943212
• The number of decimal digits it has is: 11
• The sum of 21234996640's digits is 46
• More coming soon!