21318635520

Names of 21318635520

• Cardinal: 21318635520 can be written as Twenty-one billion, three hundred eighteen million, six hundred thirty-five thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.131863552 × 10¹⁰

Factors of 21318635520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 102

Divisors of 21318635520

• Number of divisors d(n): 1248
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 28 30 31 32 35 36 39 40 41 42 45 48 52 56 60 62 63 64 65 70 72 78 80 82 84 90 91 93 96 104 105 112 117 120 123 124 126 128 130 140 144 155 156 160 164 168 180 182 186 192 195 205 208 210 217 224 234 240 246 248 252 256 260 273 279 280 287 288 310 312 315 320 328 336 360 364 369 372 384 390 403 410 416 420 434 448 455 465 468 480 492 496 504 512 520 533 546 558 560 574 576 585 615 620 624 630 640 651 656 672 720 728 738 744 768 780 806 819 820 832 840 861 868 896 910 930 936 960 984 992 1008 1024 1040 1066 1085 1092 1116 1120 1148 1152 1170 1209 1230 1240 1248 1260 1271 1280 1302 1312 1344 1365 1395 1435 1440 1456 1476 1488 1536 1560 1599 1612 1638 1640 1664 1680 1722 1736 1792 1820 1845 1860 1872 1920 1953 1968 1984 2015 2016 2048 2080 2132 2170 2184 2232 2240 2296 2304 2340 2418 2460 2480 2496 2520 2542 2560 2583 2604 2624 2665 2688 2730 2790 2821 2870 2880 2912 2952 2976 3072 3120 3198 3224 3255 3276 3280 3328 3360 3444 3472 3584 3627 3640 3690 3720 3731 3744 3813 3840 3906 3936 3968 4030 4032 4095 4096 4160 4264 4305 4340 4368 4464 4480 4592 4608 4680 4797 4836 4920 4960 4992 5040 5084 5120 5166 5208 5248 5330 5376 5460 5580 5642 5740 5760 5824 5904 5952 6045 6144 6240 6355 6396 6448 6510 6552 6560 6656 6720 6888 6944 7168 7254 7280 7380 7440 7462 7488 7626 7680 7812 7872 7936 7995 8060 8064 8190 8320 8463 8528 8610 8680 8736 8897 8928 8960 9184 9216 9360 9594 9672 9765 9840 9920 9984 10080 10168 10240 10332 10416 10496 10660 10752 10920 11160 11193 11284 11439 11480 11520 11648 11808 11904 12090 12288 12480 12710 12792 12896 12915 13020 13104 13120 13312 13440 13776 13888 14105 14336 14508 14560 14760 14880 14924 14976 15252 15360 15624 15744 15872 15990 16120 16128 16380 16523 16640 16926 17056 17220 17360 17472 17794 17856 17920 18135 18368 18432 18655 18720 19065 19188 19344 19530 19680 19840 19968 20160 20336 20480 20664 20832 20992 21320 21504 21840 22320 22386 22568 22878 22960 23040 23296 23616 23808 23985 24180 24960 25389 25420 25584 25792 25830 26040 26208 26240 26624 26691 26880 27552 27776 28210 28672 29016 29120 29520 29760 29848 29952 30504 30720 31248 31488 31744 31980 32240 32256 32760 33046 33280 33579 33852 34112 34440 34720 34944 35588 35712 35840 36270 36736 36864 37310 37440 38130 38376 38688 39060 39360 39680 39936 40320 40672 41328 41664 41984 42315 42640 43008 43680 44485 44640 44772 45136 45756 45920 46080 46592 47232 47616 47970 48360 49569 49920 50778 50840 51168 51584 51660 52080 52416 52480 53248 53382 53760 55104 55552 55965 56420 57195 58032 58240 59040 59520 59696 59904 61008 61440 62496 62976 63488 63960 64480 64512 65520 66092 66560 67158 67704 68224 68880 69440 69888 71176 71424 71680 72540 73472 74620 74880 76260 76752 77376 78120 78720 79360 79872 80073 80640 81344 82615 82656 83328 83968 84630 85280 86016 87360 88970 89280 89544 90272 91512 91840 92160 93184 94464 95232 95940 96720 99138 99840 101556 101680 102336 103168 103320 104160 104832 104960 106764 107520 110208 111104 111930 112840 114390 115661 116064 116480 118080 119040 119392 119808 122016 124992 125952 126945 126976 127920 128960 129024 131040 132184 133120 133455 134316 135408 136448 137760 138880 139776 142352 142848 143360 145080 146944 148707 149240 149760 152520 153504 154752 156240 157440 158720 159744 160146 161280 162688 165230 165312 166656 167895 167936 169260 170560 174720 177940 178560 179088 180544 183024 183680 184320 186368 188928 190464 191880 193440 198276 199680 203112 203360 204672 206336 206640 208320 209664 209920 213528 215040 220416 222208 223860 225680 228780 231322 232128 232960 236160 238080 238784 239616 244032 247845 249984 251904 253890 255840 257920 258048 262080 264368 266240 266910 268632 270816 272896 275520 277760 279552 284704 285696 290160 293888 297414 298480 299520 305040 307008 309504 312480 314880 317440 320292 322560 325376 330460 330624 333312 335790 338520 341120 346983 349440 355880 357120 358176 361088 366048 367360 372736 377856 380928 383760 386880 396552 399360 400365 406224 406720 409344 412672 413280 416640 419328 419840 427056 430080 440832 444416 447720 451360 457560 462644 464256 465920 472320 476160 477568 479232 488064 495690 499968 503808 507780 511680 515840 524160 528736 533820 537264 541632 545792 551040 555520 559104 569408 571392 578305 580320 587776 594828 596960 599040 610080 614016 619008 624960 629760 634880 640584 645120 650752 660920 661248 666624 671580 677040 682240 693966 698880 711760 714240 716352 722176 732096 734720 743535 755712 767520 773760 793104 798720 800730 812448 813440 818688 825344 826560 833280 838656 839680 854112 881664 888832 895440 902720 915120 925288 928512 931840 944640 952320 955136 976128 991380 999936 1015560 1023360 1031680 1040949 1048320 1057472 1067640 1074528 1083264 1091584 1102080 1111040 1118208 1138816 1142784 1156610 1160640 1175552 1189656 1193920 1198080 1220160 1228032 1238016 1249920 1259520 1281168 1290240 1301504 1321840 1322496 1333248 1343160 1354080 1364480 1387932 1397760 1423520 1428480 1432704 1444352 1464192 1469440 1487070 1511424 1535040 1547520 1586208 1601460 1624896 1626880 1637376 1650688 1653120 1666560 1677312 1708224 1734915 1763328 1790880 1805440 1830240 1850576 1857024 1863680 1889280 1904640 1910272 1952256 1982760 1999872 2031120 2046720 2063360 2081898 2096640 2114944 2135280 2149056 2166528 2183168 2204160 2222080 2277632 2313220 2321280 2379312 2387840 2396160 2440320 2456064 2476032 2499840 2519040 2562336 2603008 2643680 2644992 2666496 2686320 2708160 2728960 2775864 2795520 2847040 2856960 2865408 2888704 2928384 2938880 2974140 3070080 3095040 3172416 3202920 3249792 3253760 3274752 3306240 3333120 3354624 3416448 3469830 3526656 3581760 3610880 3660480 3701152 3714048 3778560 3820544 3904512 3965520 3999744 4062240 4093440 4126720 4163796 4193280 4229888 4270560 4298112 4333056 4408320 4444160 4555264 4626440 4642560 4758624 4775680 4880640 4912128 4952064 4999680 5124672 5204745 5206016 5287360 5289984 5372640 5416320 5457920 5551728 5591040 5694080 5713920 5730816 5777408 5856768 5877760 5948280 6140160 6190080 6344832 6405840 6499584 6507520 6549504 6612480 6666240 6832896 6939660 7163520 7221760 7320960 7402304 7428096 7557120 7641088 7809024 7931040 7999488 8124480 8186880 8253440 8327592 8386560 8459776 8541120 8596224 8666112 8816640 9110528 9252880 9285120 9517248 9551360 9761280 9824256 9999360 10249344 10409490 10574720 10579968 10745280 10832640 10915840 11103456 11388160 11461632 11554816 11713536 11896560 12280320 12380160 12689664 12811680 12999168 13015040 13224960 13332480 13665792 13879320 14327040 14443520 14641920 14804608 14856192 15282176 15618048 15862080 16248960 16373760 16655184 16773120 16919552 17082240 17192448 17332224 17633280 18221056 18505760 18570240 19034496 19102720 19522560 19648512 19998720 20498688 20818980 21149440 21490560 21665280 22206912 22776320 22923264 23427072 23793120 24560640 24760320 25379328 25623360 25998336 26030080 26449920 27331584 27758640 28654080 28887040 29283840 29609216 31724160 32497920 32747520 33310368 33839104 34164480 34384896 34664448 36442112 37011520 37140480 38068992 38205440 39045120 39997440 40997376 41637960 42298880 42981120 43330560 44413824 45552640 45846528 46854144 47586240 49121280 50758656 51246720 51996672 52899840 54663168 55517280 57308160 57774080 58567680 59218432 63448320 64995840 66620736 67678208 68328960 68769792 74023040 74280960 76137984 76410880 78090240 81994752 83275920 84597760 85962240 86661120 88827648 91105280 95172480 98242560 101517312 102493440 103993344 109326336 111034560 114616320 117135360 118436864 126896640 129991680 133241472 136657920 137539584 148046080 152275968 163989504 166551840 169195520 171924480 173322240 177655296 182210560 190344960 203034624 204986880 222069120 229232640 234270720 236873728 253793280 259983360 266482944 273315840 296092160 304551936 327979008 333103680 338391040 343848960 355310592 380689920 409973760 444138240 473747456 507586560 519966720 532965888 546631680 592184320 609103872 666207360 687697920 710621184 761379840 819947520 888276480 1015173120 1065931776 1184368640 1332414720 1421242368 1522759680 1639895040 1776552960 2131863552 2368737280 2664829440 3045519360 3553105920 4263727104 5329658880 7106211840 10659317760 21318635520
• Sum of all divisors σ(n): 96172038144
• Sum of proper divisors (its aliquot sum) s(n): 74853402624
• 21318635520 is an abundant number, because the sum of its proper divisors (74853402624) is greater than itself. Its abundance is 53534767104

Bases of 21318635520

• Binary: 10011110110101100001001000000000000₂
• Hexadecimal: 0x4F6B09000
• Base-36: 9SKKCG0

Squares and roots of 21318635520

• 21318635520 squared (21318635520²) is 454484220434605670400
• 21318635520 cubed (21318635520³) is 9688983445036694282182852608000
• The square root of 21318635520 is 146009.0254744549
• The cube root of 21318635520 is 2772.8080201617

Scales and comparisons

• 21,318,635,520 seconds is equal to 677 years, 45 weeks, 11 hours, 12 minutes.
• To count from 1 to 21,318,635,520 would take you about one thousand, three hundred fifty-five 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 21318635520 cubic inches would be around 231.1 feet tall.

Recreational maths with 21318635520

• 21318635520 backwards is 02553681312
• 21318635520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21318635520's digits is 36
• More coming soon!