21656216359148028

Names of 21656216359148028

• Cardinal: 21656216359148028 can be written as Twenty-one quadrillion, six hundred fifty-six trillion, two hundred sixteen billion, three hundred fifty-nine million, one hundred forty-eight thousand and twenty-eight.

Scientific notation

• Scientific notation: 2.1656216359148028 × 10¹⁶

Factors of 21656216359148028

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 24871

Divisors of 21656216359148028

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 12 14 17 21 28 29 34 42 51 58 68 84 87 102 116 119 174 181 203 204 238 348 357 362 406 476 493 543 609 714 724 812 841 986 1086 1218 1267 1428 1479 1682 1972 2172 2436 2523 2534 2958 3077 3364 3451 3801 5046 5068 5101 5249 5887 5916 6154 6902 7602 9231 10092 10202 10353 10498 11774 12308 13804 14297 15204 15303 15747 17661 18462 19531 20404 20706 20996 21539 23548 28594 30606 31494 35322 35707 36743 36924 39062 41412 42891 43078 57188 58593 61212 62988 64617 70644 71414 73486 78124 85782 86156 86717 89233 100079 107121 110229 117186 129234 136717 142828 146972 147929 152221 171564 173434 178466 200158 214242 220458 234372 258468 260151 267699 273434 295858 300237 304442 332027 346868 356932 400316 410151 428484 440916 443787 456663 520302 535398 546868 566399 591716 600474 607019 608884 624631 664054 820302 887574 913326 923281 996081 1035503 1040604 1065547 1070796 1132798 1200948 1214038 1249262 1328108 1640604 1699197 1775148 1821057 1826652 1846562 1873893 1992162 2071006 2131094 2265596 2324189 2428076 2498524 2514793 2587757 2769843 3106509 3196641 3398394 3535111 3642114 3693124 3747786 3964793 3984324 4142012 4262188 4289941 4648378 5029586 5175514 5539686 6213018 6393282 6462967 6796788 6972567 7070222 7284228 7495572 7544379 7763271 7929586 8579882 9296756 9628783 10059172 10351028 10605333 11079372 11894379 12426036 12786564 12869823 12925934 13945134 14140444 15088758 15526542 15695777 15859172 16425571 17159764 17603551 18114299 19257566 19388901 21210666 23788758 24745777 25739646 25851868 26775149 27890268 28886349 30029587 30177516 31053084 31391554 32851142 35207102 36228598 38515132 38777802 42421332 47087331 47577516 49276713 49491554 51479292 52810653 53550298 54342897 57772698 60059174 60096887 62783108 65702284 67401481 70414204 72457196 72928997 74237331 77555604 80325447 90088761 94174662 98553426 98983108 99627631 102518219 105621306 107100596 108685794 109870439 114978997 115545396 120118348 120193774 134802962 145857994 148474662 160650894 180177522 180290661 187426043 188349324 197106852 199255262 202204443 205036438 211242612 217371588 218786991 219740878 229957994 240387548 269605924 279234707 291715988 296949324 298882893 307554657 321301788 329611317 344936991 360355044 360581322 374852086 398510524 404408886 410072876 420678209 437573982 439481756 455177533 459915988 510502979 558469414 562278129 597765786 615109314 659222634 689873982 697393417 717627533 721162644 749704172 776479321 808817772 837704121 841356418 875147964 910355066 1021005958 1116938828 1124556258 1195531572 1230218628 1262034627 1318445268 1365532599 1379747964 1394786834 1435255066 1531508937 1552958642 1675408242 1682712836 1693669727 1742809723 1820710132 1954642949 2042011916 2092180251 2152882599 2249112516 2329437963 2524069254 2731065198 2789573668 2870510132 2889201299 2973028351 3063017874 3105917284 3186242731 3350816484 3387339454 3485619446 3909285898 4184360502 4305765198 4658875926 5048138508 5081009181 5228429169 5435355247 5462130396 5778402598 5863928847 5946056702 6126035748 6372485462 6774678908 6971238892 7818571796 8368721004 8611530396 8667603897 8919085053 9317751852 9558728193 10162018362 10456858338 10870710494 11556805196 11727857694 11855688089 11892113404 12199668061 12744970924 13200148457 16306065741 17335207794 17838170106 18032601211 19117456386 20224409093 20324036724 20811198457 20913716676 21741420988 23455715388 23711376178 24399336122 26400296914 32612131482 34670415588 35567064267 35676340212 36065202422 36599004183 38234912772 39600445371 40448818186 41622396914 47422752356 48798672244 49116422083 50541481967 52800593828 54097803633 60673227279 62433595371 65224262964 71134128534 72130404844 73198008366 79200890742 80897636372 83244793828 83786837671 92401039199 98232844166 101082963934 108195607266 121346454558 124867190742 126228208477 142268257068 146396016732 147349266249 151624445901 158401781484 167573675342 184802078398 196465688332 202165927868 216391214532 242692909116 249734381484 251360513013 252456416954 277203117597 294698532498 303248891802 306554220587 335147350684 343814954581 353790373769 369604156796 378684625431 502721026026 504912833908 522945435119 554406235194 586507863697 589397064996 606497783604 613108441174 687629909162 707580747538 757369250862 919662661761 1005442052052 1031444863743 1045890870238 1061371121307 1108812470388 1173015727394 1226216882348 1375259818324 1415161495076 1424376240407 1514738501724 1568836305357 1759523591091 1839325323522 2062889727486 2091781740476 2122742242614 2145879544109 2346031454788 2848752480814 3137672610714 3519047182182 3660618045833 3678650647044 4125779454972 4245484485228 4273128721221 4291759088218 5697504961628 6275345221428 6437638632327 7038094364364 7321236091666 8546257442442 8583518176436 8890072397023 9970633682849 10981854137499 12875277264654 14642472183332 15165417618451 17092514884884 17780144794046 19941267365698 21963708274998 25750554529308 26670217191069 29911901048547 30330835236902 35560289588092 39882534731396 43927416549996 45496252855353 53340434382138 59823802097094 60661670473804 62230506779161 90992505710706 106157923329157 106680868764276 119647604194188 124461013558322 181985011421412 186691520337483 212315846658314 248922027116644 257812099513667 318473769987471 373383040674966 424631693316628 515624199027334 636947539974942 746766081349932 773436298541001 1031248398054668 1273895079949884 1546872597082002 1804684696595669 3093745194164004 3609369393191338 5414054089787007 7218738786382676 10828108179574014 21656216359148028
• Sum of all divisors σ(n): 63693811213433856
• Sum of proper divisors (its aliquot sum) s(n): 42037594854285828
• 21656216359148028 is an abundant number, because the sum of its proper divisors (42037594854285828) is greater than itself. Its abundance is 20381378495137800

Bases of 21656216359148028

• Binary: 1001100111100000011011011001011010001000001100111111100₂
• Hexadecimal: 0x4CF036CB4419FC
• Base-36: 5X8HKG9ASXO

Squares and roots of 21656216359148028

• 21656216359148028 squared (21656216359148028²) is 468991706994230669671402016288784
• 21656216359148028 cubed (21656216359148028³) is 10156585877313216851560283477188866826684652117952
• The square root of 21656216359148028 is 147160512.2277984869
• The cube root of 21656216359148028 is 278736.7255561691

Scales and comparisons

• 21,656,216,359,148,028 seconds is equal to 688,600,693 years, 7 weeks, 3 days, 22 hours, 53 minutes, 48 seconds.
• To count from 1 to 21,656,216,359,148,028 would take you about two billion, sixty-five million, eight hundred two thousand and seventy-nine 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 21656216359148028 cubic inches would be around 23228.1 feet tall.

Recreational maths with 21656216359148028

• 21656216359148028 backwards is 82084195361265612
• The number of decimal digits it has is: 17
• The sum of 21656216359148028's digits is 69
• More coming soon!