21455259555840

Names of 21455259555840

• Cardinal: 21455259555840 can be written as Twenty-one trillion, four hundred fifty-five billion, two hundred fifty-nine million, five hundred fifty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.145525955584 × 10¹³

Factors of 21455259555840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 16718

Divisors of 21455259555840

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 30 32 33 34 40 44 48 51 55 60 64 66 68 80 85 88 96 102 110 120 128 132 136 160 165 170 176 187 192 204 220 227 240 255 256 264 272 320 330 340 352 374 384 408 440 454 480 510 512 528 544 561 640 660 680 681 704 748 768 816 880 908 935 960 1020 1024 1056 1088 1122 1135 1280 1320 1360 1362 1408 1496 1536 1632 1760 1816 1870 1920 2040 2048 2112 2176 2244 2270 2497 2560 2640 2720 2724 2805 2816 2992 3072 3264 3405 3520 3632 3740 3840 3859 4080 4224 4352 4488 4540 4994 5120 5280 5440 5448 5610 5632 5984 6144 6528 6810 7040 7264 7480 7491 7680 7718 8160 8448 8704 8976 9080 9988 10240 10560 10880 10896 11220 11264 11577 11968 12485 13056 13620 14080 14528 14960 14982 15360 15436 16320 16453 16896 17408 17952 18160 19295 19976 21120 21760 21792 22440 22528 23154 23936 24970 26112 27240 28160 29056 29920 29964 30720 30872 32640 32906 33792 34816 35904 36320 37455 38590 39952 42240 42449 43520 43584 44880 46308 47872 49359 49940 52224 54480 56320 57885 58112 59840 59928 61744 65280 65812 67584 71808 72640 74910 77180 79904 82265 84480 84898 87040 87168 89760 92616 95744 98718 99880 104448 108960 112640 115770 116224 119680 119856 123488 127347 130560 131624 143616 145280 149820 154360 159808 164530 168960 169796 174080 174336 179520 180983 185232 191488 197436 199760 212245 217920 231540 232448 239360 239712 246795 246976 254694 261120 263248 279701 287232 290560 299640 308720 319616 329060 337920 339592 348672 359040 361966 370464 382976 394872 399520 424490 435840 463080 464896 478720 479424 493590 493952 509388 522240 526496 542949 559402 574464 581120 599280 617440 636735 639232 658120 679184 697344 718080 723932 740928 789744 799040 839103 848980 871680 904915 926160 957440 958848 987180 987904 1018776 1052992 1085898 1118804 1148928 1162240 1198560 1234880 1273470 1278464 1316240 1358368 1394688 1398505 1436160 1447864 1481856 1579488 1598080 1678206 1697960 1743360 1809830 1852320 1914880 1917696 1974360 1975808 2037552 2105984 2171796 2237608 2324480 2397120 2469760 2546940 2556928 2632480 2714745 2716736 2797010 2872320 2895728 2963712 3076711 3158976 3196160 3356412 3395920 3486720 3619660 3704640 3734831 3835392 3948720 3951616 4075104 4195515 4211968 4343592 4475216 4794240 4939520 5093880 5113856 5264960 5429490 5433472 5594020 5744640 5791456 5927424 6153422 6317952 6392320 6712824 6791840 6973440 7239320 7409280 7469662 7670784 7897440 7903232 8150208 8391030 8423936 8687184 8950432 9230133 9588480 9879040 10187760 10529920 10858980 10866944 11188040 11204493 11582912 11854848 12306844 12635904 12784640 13425648 13583680 14478640 14818560 14939324 15341568 15383555 15794880 16300416 16782060 16847872 17374368 17900864 18460266 18674155 19176960 19758080 20375520 21059840 21717960 21733888 22376080 22408986 23165824 23709696 24613688 25271808 25569280 26851296 27167360 28957280 29637120 29878648 30767110 31589760 32600832 33564120 33695744 34748736 35801728 36920532 37348310 38353920 39516160 40751040 41083141 42119680 43435920 43467776 44752160 44817972 46150665 46331648 49227376 50543616 53702592 54334720 56022465 57914560 59274240 59757296 61534220 63179520 63492127 65201664 67128240 69497472 71603456 73841064 74696620 76707840 81502080 82166282 84239360 86871840 86935552 89504320 89635944 92301330 92663296 98454752 101087232 107405184 108669440 112044930 115829120 118548480 119514592 123068440 123249423 126359040 126984254 130403328 134256480 138994944 143206912 147682128 149393240 163004160 164332564 168478720 173743680 179008640 179271888 184602660 185326592 190476381 196909504 205415705 214810368 217338880 224089860 231658240 239029184 246136880 246498846 252718080 253968508 260806656 268512960 277989888 286413824 295364256 298786480 317460635 326008320 328665128 347487360 358017280 358543776 369205320 370653184 380952762 393819008 410831410 429620736 434677760 448179720 463316480 478058368 492273760 492997692 505436160 507937016 537025920 555979776 572827648 590728512 597572960 616247115 634921270 652016640 657330256 694974720 698413397 716034560 717087552 738410640 761905524 787638016 821662820 859241472 896359440 926632960 952381905 956116736 984547520 985995384 1015874032 1074051840 1111959552 1181457024 1195145920 1232494230 1269842540 1304033280 1314660512 1389949440 1396826794 1432069120 1434175104 1476821280 1523811048 1575276032 1643325640 1718482944 1792718880 1853265920 1904763810 1912233472 1969095040 1971990768 2031748064 2095240191 2148103680 2362914048 2390291840 2464988460 2539685080 2629321024 2779898880 2793653588 2864138240 2868350208 2953642560 3047622096 3150552064 3286651280 3492066985 3585437760 3809527620 3824466944 3938190080 3943981536 4063496128 4190480382 4296207360 4725828096 4780583680 4929976920 5079370160 5258642048 5559797760 5587307176 5736700416 5907285120 6095244192 6301104128 6573302560 6984133970 7170875520 7619055240 7648933888 7876380160 7887963072 8126992256 8380960764 8592414720 9451656192 9561167360 9859953840 10158740320 10476200955 10517284096 11174614352 11473400832 11814570240 12190488384 13146605120 13968267940 14341751040 15238110480 15752760320 15775926144 16253984512 16761921528 18903312384 19122334720 19719907680 20317480640 20952401910 21034568192 22349228704 22946801664 23629140480 24380976768 26293210240 27936535880 28683502080 30476220960 31505520640 31551852288 32507969024 33523843056 38244669440 39439815360 40634961280 41904803820 42069136384 44698457408 47258280960 48761953536 52586420480 55873071760 57367004160 60952441920 63103704576 65015938048 67047686112 78879630720 81269922560 83809607640 84138272768 89396914816 94516561920 97523907072 105172840960 111746143520 114734008320 121904883840 126207409152 130031876096 134095372224 157759261440 162539845120 167619215280 178793829632 195047814144 210345681920 223492287040 243809767680 252414818304 268190744448 315518522880 325079690240 335238430560 357587659264 390095628288 420691363840 446984574080 487619535360 536381488896 631037045760 650159380480 670476861120 715175318528 893969148160 975239070720 1072762977792 1262074091520 1340953722240 1430350637056 1787938296320 1950478141440 2145525955584 2681907444480 3575876592640 4291051911168 5363814888960 7151753185280 10727629777920 21455259555840
• Sum of all divisors σ(n): 79638897461760
• Sum of proper divisors (its aliquot sum) s(n): 58183637905920
• 21455259555840 is an abundant number, because the sum of its proper divisors (58183637905920) is greater than itself. Its abundance is 36728378350080

Bases of 21455259555840

• Binary: 100111000001101110001000111111101100000000000₂
• Hexadecimal: 0x1383711FD800
• Base-36: 7LSERKX6O

Squares and roots of 21455259555840

• 21455259555840 squared (21455259555840²) is 460328162608463634078105600
• 21455259555840 cubed (21455259555840³) is 9876460209627508765515408243324616704000
• The square root of 21455259555840 is 4631982.2490851581
• The cube root of 21455259555840 is 27787.1874587661

Scales and comparisons

• 21,455,259,555,840 seconds is equal to 682,210 years, 46 weeks, 1 day, 9 hours, 4 minutes.
• To count from 1 to 21,455,259,555,840 would take you about one million, seven hundred five thousand, five hundred twenty-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 21455259555840 cubic inches would be around 2315.6 feet tall.

Recreational maths with 21455259555840

• 21455259555840 backwards is 04855595255412
• 21455259555840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21455259555840's digits is 60
• More coming soon!