21007966557825

Names of 21007966557825

• Cardinal: 21007966557825 can be written as Twenty-one trillion, seven billion, nine hundred sixty-six million, five hundred fifty-seven thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 2.1007966557825 × 10¹³

Factors of 21007966557825

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 362

Divisors of 21007966557825

• Number of divisors d(n): 720
• Complete list of divisors:
  1 3 5 9 13 15 25 27 29 31 39 45 65 75 81 87 93 117 135 145 155 169 195 225 243 261 279 281 325 351 377 403 405 435 465 507 585 675 725 729 775 783 837 843 845 899 975 1053 1131 1209 1215 1305 1395 1405 1521 1755 1885 2015 2025 2175 2187 2325 2349 2511 2529 2535 2697 2925 3159 3393 3627 3645 3653 3915 4185 4215 4225 4495 4563 4901 5239 5265 5655 6045 6075 6525 6561 6975 7025 7047 7533 7587 7605 8091 8149 8711 8775 9425 9477 10075 10179 10881 10935 10959 11687 11745 12555 12645 12675 13485 13689 14703 15717 15795 16965 18135 18225 18265 19575 19683 20925 21075 21141 22475 22599 22761 22815 24273 24447 24505 26133 26195 26325 28275 28431 30225 30537 32643 32805 32877 35061 35235 37665 37935 38025 40455 40745 41067 43555 44109 47151 47385 47489 50895 54405 54675 54795 58435 58725 62775 63225 63423 67425 67797 68283 68445 72819 73341 73515 78399 78585 78975 84825 85293 90675 91325 91611 97929 98415 98631 105183 105705 105937 112995 113243 113805 114075 121365 122235 122525 123201 130665 130975 132327 141453 142155 142467 151931 152685 163215 164025 164385 175305 176175 188325 189675 190269 202275 203391 203725 204849 205335 217775 218457 220023 220545 235197 235755 236925 237445 252619 254475 255879 272025 273975 274833 292175 293787 295893 315549 317115 317811 338985 339729 341415 342225 364095 366705 367575 369603 391995 392925 396981 424359 426465 427401 455793 458055 489645 492075 493155 525915 528525 529685 564975 566215 569025 570807 606825 610173 611175 614547 616005 653325 655371 660069 661635 705591 707265 710775 712335 757857 759655 763425 816075 821925 824499 876525 881361 887679 946647 951345 953433 1016955 1019187 1024245 1026675 1092285 1100115 1102725 1108809 1175985 1178775 1187225 1190943 1263095 1273077 1279395 1282203 1367379 1374165 1377181 1468935 1472159 1479465 1577745 1585575 1589055 1694925 1698645 1707075 1820475 1833525 1843641 1848015 1959975 1966113 1980207 1984905 2116773 2121795 2132325 2137005 2273571 2278965 2290275 2448225 2465775 2473497 2629575 2644083 2648425 2663037 2831075 2839941 2854035 2860299 3050865 3057561 3072735 3080025 3276855 3284047 3300345 3308175 3326427 3527955 3536325 3561675 3572829 3789285 3798275 3819231 3846609 4102137 4122495 4131543 4406805 4416477 4438395 4733235 4756725 4767165 5084775 5095935 5121225 5461425 5500575 5530923 5544045 5879925 5898339 5940621 5954715 6315475 6350319 6365385 6396975 6411015 6820713 6836895 6870825 6885905 7344675 7360795 7397325 7420491 7888725 7932249 7945275 7989111 8493225 8519823 8580897 9172683 9218205 9240075 9830565 9852141 9901035 9924525 10583865 10608975 10685025 10718487 11367855 11394825 11457693 11539827 12306411 12367485 12394629 13220415 13249431 13315185 14199705 14270175 14301495 15254325 15287805 15363675 16384275 16420235 16501725 16632135 17639775 17695017 17821863 17864145 18946425 19050957 19096155 19233045 20462139 20510685 20612475 20657715 22034025 22082385 22191975 23666175 23835825 23967333 25479675 25559469 25742691 27518049 27654615 27720225 29491695 29556423 29703105 29773575 31751595 31826925 32055075 32155461 34103565 34184475 34373079 34429525 34619481 36803975 36919233 37102455 37183887 39661245 39748293 39945555 42599115 42692611 42904485 45863415 46091025 49152825 49260705 49505175 52919325 53465589 53592435 56839275 57152871 57288465 57699135 61386417 61532055 61837425 61973145 66102075 66247155 66575925 70998525 71507475 71901999 76439025 76678407 77228073 82101175 82554147 83160675 88475085 88669269 89109315 89320725 95254785 95480775 96165225 96466383 102310695 102553425 103119237 103288575 103858443 110411925 110757699 111551661 119244879 119836665 127797345 128077833 128713455 137590245 138273075 147458475 147782115 148515525 158757975 160396767 160777305 170517825 171458613 171865395 173097405 184159251 184596165 185512275 185919435 198306225 198741465 199727775 212995575 213463055 214522425 229317075 230035221 231684219 246303525 247662441 266007807 267327945 267962175 285764355 286442325 288495675 306932085 307660275 309865725 311575329 331235775 332273097 334654983 357734637 359509995 383392035 384233499 386140365 412770735 442375425 443346345 445546575 476273925 482331915 511553475 515596185 519292215 552477753 553788495 557758305 596224395 599183325 638986725 640389165 643567275 687951225 695052657 738910575 742987323 798023421 801983835 803886525 857293065 859326975 865487025 920796255 922980825 929597175 934725987 993707325 996819291 1003964949 1067315275 1073203911 1150176105 1152700497 1158421095 1238312205 1330039035 1336639725 1428821775 1534660425 1557876645 1657433259 1661365485 1673274915 1788673185 1797549975 1916960175 1921167495 1930701825 2063853675 2085157971 2216731725 2228961969 2394070263 2411659575 2577980925 2596461075 2762388765 2768942475 2788791525 2981121975 2990457873 3011894847 3201945825 3219611733 3458101491 3475263285 3714936615 3990117105 4009919175 4286465325 4603981275 4673629935 4972299777 4984096455 5019824745 5366019555 5750880525 5763502485 5792105475 6191561025 6650195175 7182210789 7789383225 8287166295 8306827425 8366374575 8943365925 9035684541 9605837475 9658835199 10374304473 10425789855 11144809845 11970351315 13811943825 14952289365 15059474235 16098058665 17290507455 17376316425 18574683075 19950585525 21546632367 23368149675 24861498885 24920482275 25099123725 26830097775 27107053623 28817512425 28976505597 31122913419 35911053945 41435831475 45178422705 48294175995 51871522365 52128949275 55724049225 59851756575 64639897101 74761446825 75297371175 80490293325 86452537275 93368740257 107733161835 124307494425 135535268115 144882527985 155614567095 179555269725 225892113525 241470879975 259357611825 280106220771 323199485505 466843701285 538665809175 677676340575 724412639925 778072835475 840318662313 1400531103855 1615997427525 2334218506425 4201593311565 7002655519275 21007966557825
• Sum of all divisors σ(n): 45342798589440
• Sum of proper divisors (its aliquot sum) s(n): 24334832031615
• 21007966557825 is an abundant number, because the sum of its proper divisors (24334832031615) is greater than itself. Its abundance is 3326865473790

Bases of 21007966557825

• Binary: 100110001101101001100011000100101011010000001₂
• Hexadecimal: 0x131B4C625681
• Base-36: 7G2XCVN29

Squares and roots of 21007966557825

• 21007966557825 squared (21007966557825²) is 441334658894693579068730625
• 21007966557825 cubed (21007966557825³) is 9271543754868826387426650377173410890625
• The square root of 21007966557825 is 4583444.8352549199
• The cube root of 21007966557825 is 27592.7300733729

Scales and comparisons

• 21,007,966,557,825 seconds is equal to 667,988 years, 18 weeks, 3 days, 2 hours, 3 minutes, 45 seconds.
• To count from 1 to 21,007,966,557,825 would take you about one million, six hundred sixty-nine thousand, nine hundred seventy 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 21007966557825 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21007966557825

• 21007966557825 backwards is 52875566970012
• The number of decimal digits it has is: 14
• The sum of 21007966557825's digits is 63
• More coming soon!