21264118920

Names of 21264118920

• Cardinal: 21264118920 can be written as Twenty-one billion, two hundred sixty-four million, one hundred eighteen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.126411892 × 10¹⁰

Factors of 21264118920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 262

Divisors of 21264118920

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 29 30 31 33 36 40 44 45 54 55 58 60 62 66 72 87 88 90 93 99 108 110 116 120 121 124 132 135 145 155 165 174 180 181 186 198 216 220 232 242 248 261 264 270 279 290 297 310 319 330 341 348 360 362 363 372 396 435 440 465 484 495 522 540 543 558 580 594 605 620 638 660 682 696 724 726 744 783 792 837 870 899 905 930 957 968 990 1023 1044 1080 1086 1089 1116 1160 1188 1210 1240 1276 1305 1320 1364 1395 1448 1452 1485 1566 1595 1629 1674 1705 1740 1798 1810 1815 1860 1914 1980 1991 2046 2088 2172 2178 2232 2376 2420 2552 2610 2697 2715 2728 2790 2871 2904 2970 3069 3132 3190 3258 3267 3348 3410 3480 3509 3596 3620 3630 3720 3751 3828 3915 3960 3982 4092 4185 4344 4356 4495 4785 4840 4887 5115 5220 5249 5394 5430 5445 5580 5611 5742 5940 5973 6138 6264 6380 6516 6534 6696 6820 7018 7192 7240 7260 7502 7656 7830 7964 8091 8145 8184 8370 8613 8712 8990 9207 9570 9774 9889 9955 10230 10440 10498 10527 10788 10860 10890 11160 11222 11253 11484 11880 11946 12276 12760 13032 13068 13485 13640 14036 14355 14520 15004 15345 15660 15747 15928 16182 16290 16335 16740 16833 17226 17545 17919 17980 18414 18755 19140 19548 19778 19910 20460 20996 21054 21576 21720 21780 21901 22444 22506 22968 23892 24273 24435 24552 26136 26245 26970 28055 28072 28710 29667 29865 30008 30690 31320 31494 31581 32364 32580 32670 33480 33666 33759 34452 35090 35838 35960 36828 37510 38280 39096 39556 39820 40455 40920 41992 42108 43065 43560 43802 44888 45012 46035 47241 47784 48546 48870 49445 50499 52490 52635 53757 53940 56110 56265 57420 57739 59334 59730 61380 61721 62988 63162 64728 65160 65340 65703 67332 67518 68904 70180 71676 73656 75020 78735 79112 79640 80910 84165 84216 86130 87604 89001 89595 90024 92070 94482 94743 97092 97740 98890 100998 101277 104980 105270 107514 107880 108779 109505 112220 112530 114840 115478 118668 119460 121365 122760 123442 125976 126324 130680 131406 134664 135036 140360 141723 143352 148335 150040 151497 157470 157905 161820 162719 168330 168795 172260 173217 175208 178002 179190 184140 185163 188964 189486 194184 195480 197109 197780 201996 202554 209960 210540 215028 217558 219010 224440 225060 230956 236205 237336 238920 242730 246884 252495 252648 262812 267003 268785 270072 283446 288695 296670 302994 308605 314940 315810 323640 325438 326337 328515 336660 337590 344520 346434 356004 358380 368280 370326 377928 378972 394218 395560 403992 405108 421080 430056 435116 438020 445005 450120 461912 472410 473715 485460 488157 493768 504990 506385 519651 525624 534006 537570 543895 555489 566892 577390 591327 593340 605988 617210 629880 631620 635129 650876 652674 657030 673320 675180 678931 692868 708615 712008 716760 740652 757485 757944 788436 810216 813595 866085 870232 876040 890010 925815 944820 947430 970920 976314 979011 985545 1009980 1012770 1039302 1068012 1075140 1087790 1110978 1133784 1154780 1182654 1186680 1211976 1234420 1263240 1270258 1301752 1305348 1314060 1335015 1350360 1357862 1385736 1417230 1464471 1481304 1514970 1558953 1576872 1627190 1631685 1666467 1732170 1780020 1789909 1851630 1889640 1894860 1905387 1952628 1958022 1971090 2019960 2025540 2036793 2078604 2136024 2150280 2175580 2221956 2309560 2365308 2440785 2468840 2540516 2598255 2610696 2628120 2670030 2715724 2777445 2834460 2928942 2937033 2956635 3029940 3117906 3175645 3254380 3263370 3332934 3394655 3464340 3560040 3579818 3703260 3789720 3810774 3905256 3916044 3942180 4051080 4073586 4157208 4351160 4393413 4443912 4730616 4881570 4895055 5081032 5196510 5340060 5369727 5431448 5554890 5668920 5716161 5857884 5874066 5913270 6059880 6110379 6235812 6351290 6508760 6526740 6665868 6789310 6928680 7159636 7322355 7406520 7621548 7794765 7832088 7884360 8147172 8332335 8786826 8949545 9526935 9763140 9790110 10183965 10393020 10680120 10739454 11109780 11432322 11715768 11748132 11826540 12220758 12471624 12702580 13053480 13331736 13578620 14319272 14644710 14685165 15243096 15589530 16109181 16294344 16664670 17148483 17573652 17899090 18331137 19053870 19526280 19580220 19688999 20367930 20786040 21478908 21967065 22219560 22864644 23496264 23653080 24441516 25405160 26848635 27157240 28580805 29289420 29370330 30551895 31179060 32218362 33329340 34296966 35147304 35798180 36662274 38107740 39160440 39377998 40735860 42957816 43934130 45729288 48327543 48883032 53697270 57161610 58578840 58740660 59066997 61103790 62358120 64436724 66658680 68593932 71596360 73324548 76215480 78755996 80545905 81471720 85742415 87868260 91655685 96655086 98444995 107394540 114323220 117481320 118133994 122207580 128873448 137187864 146649096 157511992 161091810 171484830 175736520 177200991 183311370 193310172 196889990 214789080 228646440 236267988 241637715 244415160 295334985 322183620 342969660 354401982 366622740 386620344 393779980 472535976 483275430 531602973 590669970 644367240 685939320 708803964 733245480 787559960 886004955 966550860 1063205946 1181339940 1417607928 1772009910 1933101720 2126411892 2362679880 2658014865 3544019820 4252823784 5316029730 7088039640 10632059460 21264118920
• Sum of all divisors σ(n): 83655936000
• Sum of proper divisors (its aliquot sum) s(n): 62391817080
• 21264118920 is an abundant number, because the sum of its proper divisors (62391817080) is greater than itself. Its abundance is 41127698160

Bases of 21264118920

• Binary: 10011110011011100001011010010001000₂
• Hexadecimal: 0x4F370B488
• Base-36: 9RO3V60

Squares and roots of 21264118920

• 21264118920 squared (21264118920²) is 452162753443901966400
• 21264118920 cubed (21264118920³) is 9614842560425770962351444288000
• The square root of 21264118920 is 145822.2168258321
• The cube root of 21264118920 is 2770.4424356387

Scales and comparisons

• 21,264,118,920 seconds is equal to 676 years, 6 weeks, 6 days, 11 hours, 42 minutes.
• To count from 1 to 21,264,118,920 would take you about one thousand, three hundred fifty-two 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 21264118920 cubic inches would be around 230.9 feet tall.

Recreational maths with 21264118920

• 21264118920 backwards is 02981146212
• 21264118920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21264118920's digits is 36
• More coming soon!