21245827680

Names of 21245827680

• Cardinal: 21245827680 can be written as Twenty-one billion, two hundred forty-five million, eight hundred twenty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.124582768 × 10¹⁰

Factors of 21245827680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 942

Divisors of 21245827680

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 28 30 31 32 33 35 36 40 42 44 45 48 49 55 56 60 62 63 66 70 72 77 80 84 88 90 93 96 98 99 105 110 112 120 124 126 132 140 144 147 154 155 160 165 168 176 180 186 196 198 210 217 220 224 231 240 245 248 252 264 279 280 288 294 308 310 315 330 336 341 352 360 372 385 392 396 420 434 440 441 462 465 480 490 495 496 504 528 539 558 560 588 616 620 630 651 660 672 682 693 720 735 744 770 784 792 840 868 880 882 883 924 930 980 990 992 1008 1023 1056 1078 1085 1116 1120 1155 1176 1232 1240 1260 1302 1320 1364 1386 1395 1440 1470 1488 1519 1540 1568 1584 1617 1680 1705 1736 1760 1764 1766 1848 1860 1953 1960 1980 2016 2046 2156 2170 2205 2232 2310 2352 2387 2464 2480 2520 2604 2640 2649 2695 2728 2772 2790 2940 2976 3038 3069 3080 3168 3234 3255 3360 3410 3465 3472 3528 3532 3696 3720 3906 3920 3960 4092 4312 4340 4410 4415 4464 4557 4620 4704 4774 4851 4960 5040 5115 5208 5280 5298 5390 5456 5544 5580 5880 6076 6138 6160 6181 6468 6510 6820 6930 6944 7056 7064 7161 7392 7440 7595 7812 7840 7920 7947 8085 8184 8624 8680 8820 8830 8928 9114 9240 9548 9702 9713 9765 10080 10230 10416 10596 10780 10912 11088 11160 11760 11935 12152 12276 12320 12362 12936 13020 13245 13640 13671 13860 14112 14128 14322 14880 15190 15345 15624 15840 15894 16170 16368 16709 17248 17360 17640 17660 18228 18480 18543 19096 19404 19426 19530 20460 20832 21192 21483 21560 22176 22320 22785 23520 23870 24255 24304 24552 24724 25872 26040 26490 27280 27342 27373 27720 28256 28644 29139 30380 30690 30905 31248 31788 32340 32736 33418 34720 35280 35320 35805 36456 36960 37086 38192 38808 38852 39060 39735 40920 42384 42966 43120 43267 44640 45570 47740 48510 48565 48608 49104 49448 50127 51744 52080 52980 54560 54684 54746 55440 55629 57288 58278 60760 61380 61810 62496 63576 64680 66836 67991 68355 70560 70640 71610 72912 74172 76384 77616 77704 78120 79470 81840 82119 83545 84768 85932 86240 86534 87417 91140 92715 95480 97020 97130 98208 98896 100254 104160 105960 107415 109368 109492 110880 111258 114576 116556 121520 122760 123620 127152 129360 129801 133672 135982 136710 136865 141280 143220 145695 145824 148344 150381 155232 155408 156240 158940 163680 164238 167090 171864 173068 174834 182280 185430 190960 191611 194040 194260 197792 200508 203973 211920 214830 216335 218736 218984 222516 229152 233112 243040 245520 246357 247240 250635 254304 258720 259602 267344 271964 273420 273730 278145 286440 291390 296688 300762 301103 310816 312480 317880 328476 334180 339955 343728 346136 349668 364560 370860 381920 383222 388080 388520 389403 401016 407946 410595 423840 429660 432670 437085 437472 437968 445032 466224 475937 491040 492714 494480 501270 519204 534688 543928 546840 547460 556290 572880 574833 582780 593376 601524 602206 611919 635760 649005 656952 668360 679910 687456 692272 699336 729120 741720 751905 766444 776160 777040 778806 802032 815892 821190 859320 865340 874170 875936 890064 903309 932448 951874 958055 985428 988960 1002540 1019865 1038408 1087856 1093680 1094920 1112580 1145760 1149666 1165560 1203048 1204412 1223838 1231785 1271520 1298010 1313904 1336720 1341277 1359820 1384544 1398672 1427811 1483440 1503810 1505515 1532888 1554080 1557612 1604064 1631784 1642380 1718640 1724499 1730680 1748340 1780128 1806618 1903748 1916110 1947015 1970856 2005080 2039730 2076816 2107721 2175712 2187360 2189840 2225160 2299332 2331120 2379685 2406096 2408824 2447676 2463570 2596020 2627808 2673440 2682554 2709927 2719640 2797344 2855622 2874165 2966880 3007620 3011030 3059595 3065776 3115224 3263568 3284760 3437280 3448998 3461360 3496680 3613236 3807496 3832220 3894030 3941712 4010160 4023831 4079460 4153632 4215442 4283433 4379680 4450320 4516545 4598664 4662240 4759370 4812192 4817648 4895352 4927140 5192040 5365108 5419854 5439280 5711244 5748330 6015240 6022060 6119190 6131552 6230448 6323163 6527136 6569520 6706385 6897996 6922720 6993360 7139055 7226472 7614992 7664440 7788060 7883424 8020320 8047662 8158920 8430884 8566866 8622495 8900640 9033090 9197328 9518740 9635296 9790704 9854280 10384080 10538605 10730216 10839708 10878560 11422488 11496660 12030480 12044120 12071493 12238380 12460896 12646326 13139040 13412770 13549635 13795992 13986720 14278110 14452944 14754047 15229984 15328880 15576120 16095324 16317840 16861768 17133732 17244990 18066180 18394656 18969489 19037480 19581408 19708560 20119155 20768160 21077210 21417165 21460432 21679416 22844976 22993320 24060960 24088240 24142986 24476760 25292652 26825540 27099270 27591984 28556220 28905888 29508094 30657760 31152240 31615815 32190648 32635680 33723536 34267464 34489980 36132360 37938978 38074960 39417120 40238310 42154420 42834330 42920864 43358832 44262141 45689952 45986640 48176480 48285972 48953520 50585304 53651080 54198540 55183968 57112440 59016188 60357465 62304480 63231630 64381296 67447072 68534928 68979960 72264720 73770235 75877956 76149920 80476620 84308840 85668660 86717664 88524282 91973280 94847445 96571944 97907040 101170608 107302160 108397080 114224880 118032376 120714930 126463260 128762592 132786423 137069856 137959920 144529440 147540470 151755912 160953240 168617680 171337320 177048564 189694890 193143888 202341216 214604320 216794160 221310705 228449760 236064752 241429860 252926520 265572846 275919840 295080940 303511824 321906480 337235360 342674640 354097128 379389780 386287776 433588320 442621410 472129504 482859720 505853040 531145692 590161880 607023648 643812960 663932115 685349280 708194256 758779560 885242820 965719440 1011706080 1062291384 1180323760 1327864230 1416388512 1517559120 1770485640 1931438880 2124582768 2360647520 2655728460 3035118240 3540971280 4249165536 5311456920 7081942560 10622913840 21245827680
• Sum of all divisors σ(n): 95080946688
• Sum of proper divisors (its aliquot sum) s(n): 73835119008
• 21245827680 is an abundant number, because the sum of its proper divisors (73835119008) is greater than itself. Its abundance is 52589291328

Bases of 21245827680

• Binary: 10011110010010110011001101001100000₂
• Hexadecimal: 0x4F2599A60
• Base-36: 9RD7TK0

Squares and roots of 21245827680

• 21245827680 squared (21245827680²) is 451385193808254182400
• 21245827680 cubed (21245827680³) is 9590052044953571320909688832000
• The square root of 21245827680 is 145759.4857290599
• The cube root of 21245827680 is 2769.6478363003

Scales and comparisons

• 21,245,827,680 seconds is equal to 675 years, 28 weeks, 4 days, 18 hours, 48 minutes.
• To count from 1 to 21,245,827,680 would take you about one thousand, three hundred fifty-one 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 21245827680 cubic inches would be around 230.8 feet tall.

Recreational maths with 21245827680

• 21245827680 backwards is 08672854212
• 21245827680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21245827680's digits is 45
• More coming soon!