21509808320

Names of 21509808320

• Cardinal: 21509808320 can be written as Twenty-one billion, five hundred nine million, eight hundred eight thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.150980832 × 10¹⁰

Factors of 21509808320

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 272

Divisors of 21509808320

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 49 52 53 55 56 64 65 70 77 80 88 91 98 104 106 110 112 130 140 143 154 160 176 181 182 196 208 212 220 224 245 260 265 280 286 308 320 352 362 364 371 385 392 416 424 440 448 455 490 520 530 539 560 572 583 616 637 689 704 715 724 728 742 770 784 832 848 880 905 910 980 1001 1040 1060 1078 1120 1144 1166 1232 1267 1274 1378 1430 1448 1456 1484 1540 1568 1696 1760 1810 1820 1855 1960 1991 2002 2080 2120 2156 2240 2288 2332 2353 2464 2534 2548 2597 2695 2756 2860 2896 2912 2915 2968 3080 3136 3185 3392 3445 3520 3620 3640 3710 3920 3982 4004 4081 4160 4240 4312 4576 4664 4706 4823 4928 5005 5068 5096 5194 5390 5512 5720 5792 5824 5830 5936 6160 6335 6370 6890 7007 7240 7280 7420 7579 7840 7964 8008 8162 8480 8624 8869 9152 9328 9412 9593 9646 9955 10010 10136 10192 10388 10780 11024 11440 11584 11660 11765 11872 12320 12670 12740 12985 13780 13937 14014 14480 14560 14840 15158 15680 15928 16016 16324 16471 16960 17248 17738 18656 18824 19186 19292 19910 20020 20272 20384 20405 20776 21560 22048 22880 23320 23530 23744 24115 24640 25340 25480 25883 25970 27560 27874 28028 28567 28960 29120 29680 30316 31856 32032 32648 32942 33761 34496 35035 35476 37312 37648 37895 38372 38584 39820 40040 40544 40768 40810 41552 43120 44096 44345 45760 46640 47060 47965 48230 50680 50960 51766 51940 53053 55120 55748 56056 57134 57920 59360 60632 63712 64064 65296 65884 67151 67522 69685 70070 70952 75296 75790 76744 77168 79640 80080 81088 81620 82355 83104 86240 88690 93280 94120 95930 96460 97559 101360 101920 103532 103880 105523 106106 110240 111496 112112 114268 115297 118720 121264 124709 127424 129415 130592 131768 134302 135044 139370 140140 141904 142835 150592 151580 153488 154336 159280 160160 163240 164710 166208 168805 172480 177380 181181 186560 188240 191860 192920 195118 202720 203840 207064 207760 211046 212212 220480 222992 224224 228536 230594 242528 249418 258830 261184 263536 265265 268604 270088 278740 280280 283808 285670 303160 306976 308672 318560 320320 326480 329420 335755 337610 354760 362362 371371 376480 383720 385840 390236 405440 414128 415520 422092 424424 445984 448448 457072 461188 470057 485056 487795 498836 517660 527072 527615 530530 537208 540176 557480 560560 567616 571340 576485 606320 613952 623545 637120 652960 658840 671510 675220 709520 724724 738661 742742 752960 767440 771680 780472 828256 831040 844184 848848 872963 891968 905905 914144 922376 940114 975590 997672 1035320 1054144 1055230 1061060 1074416 1080352 1114960 1121120 1142680 1152970 1212640 1247090 1268267 1305920 1317680 1343020 1350440 1371799 1419040 1449448 1477322 1485484 1534880 1543360 1560944 1656512 1688368 1697696 1745926 1811810 1828288 1844752 1856855 1880228 1951180 1995344 2070640 2110460 2122120 2148832 2160704 2229920 2242240 2285360 2305940 2350285 2425280 2494180 2536534 2635360 2686040 2700880 2743598 2838080 2898896 2954644 2970968 3069760 3121888 3376736 3395392 3491852 3623620 3689504 3693305 3713710 3760456 3902360 3990688 4141280 4220920 4244240 4297664 4364815 4459840 4570720 4611880 4700570 4988360 5073068 5170627 5270720 5372080 5401760 5487196 5797792 5909288 5941936 6110741 6243776 6341335 6753472 6858995 6983704 7247240 7379008 7386610 7427420 7520912 7804720 7981376 8282560 8441840 8488480 8729630 9141440 9223760 9401140 9602593 9976720 10146136 10341254 10744160 10803520 10974392 11595584 11818576 11883872 12221482 12682670 13717990 13967408 14494480 14773220 14854840 15041824 15609440 16883680 16976960 17459260 18447520 18802280 19205186 19953440 20292272 20682508 21488320 21948784 23637152 23767744 24442964 25365340 25853135 27435980 27934816 28988960 29546440 29709680 30083648 30553705 31218880 33767360 34918520 36895040 37604560 38410372 39906880 40584544 41365016 43897568 47274304 48012965 48885928 50730680 51706270 54871960 55869632 57977920 59092880 59419360 61107410 67218151 69837040 75209120 76820744 81169088 82730032 87795136 96025930 97771856 101461360 103412540 109743920 118185760 118838720 122214820 134436302 139674080 150418240 153641488 165460064 192051860 195543712 202922720 206825080 219487840 236371520 244429640 268872604 279348160 307282976 330920128 336090755 384103720 391087424 405845440 413650160 438975680 488859280 537745208 614565952 672181510 768207440 827300320 977718560 1075490416 1344363020 1536414880 1654600640 1955437120 2150980832 2688726040 3072829760 4301961664 5377452080 10754904160 21509808320
• Sum of all divisors σ(n): 71714051136
• Sum of proper divisors (its aliquot sum) s(n): 50204242816
• 21509808320 is an abundant number, because the sum of its proper divisors (50204242816) is greater than itself. Its abundance is 28694434496

Bases of 21509808320

• Binary: 10100000010000101011010000011000000₂
• Hexadecimal: 0x50215A0C0
• Base-36: 9VQDUBK

Squares and roots of 21509808320

• 21509808320 squared (21509808320²) is 462671853963141222400
• 21509808320 cubed (21509808320³) is 9951982893806200038914490368000
• The square root of 21509808320 is 146662.2252660855
• The cube root of 21509808320 is 2781.0716638453

Scales and comparisons

• 21,509,808,320 seconds is equal to 683 years, 49 weeks, 1 day, 2 hours, 45 minutes, 20 seconds.
• To count from 1 to 21,509,808,320 would take you about one thousand, three hundred sixty-seven 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 21509808320 cubic inches would be around 231.8 feet tall.

Recreational maths with 21509808320

• 21509808320 backwards is 02380890512
• The number of decimal digits it has is: 11
• The sum of 21509808320's digits is 38
• More coming soon!