21421306903968

Names of 21421306903968

• Cardinal: 21421306903968 can be written as Twenty-one trillion, four hundred twenty-one billion, three hundred six million, nine hundred three thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1421306903968 × 10¹³

Factors of 21421306903968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 72

Divisors of 21421306903968

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 19 24 27 31 32 34 36 38 48 51 54 57 62 68 72 76 93 96 102 108 114 124 136 144 152 153 171 186 204 216 228 248 272 279 288 304 306 323 342 361 372 408 432 456 459 496 513 527 544 558 589 608 612 646 684 722 744 816 837 864 912 918 969 992 1026 1054 1083 1116 1178 1224 1292 1368 1444 1488 1581 1632 1674 1767 1824 1836 1938 2052 2108 2166 2232 2356 2448 2584 2736 2888 2907 2976 3162 3249 3348 3534 3672 3876 4104 4216 4332 4464 4712 4743 4896 5168 5301 5472 5776 5814 6137 6324 6498 6696 6859 7068 7344 7752 8208 8432 8664 8721 8928 9424 9486 9747 10013 10336 10602 11191 11552 11628 12274 12648 12996 13392 13718 14136 14229 14688 15504 15903 16416 16864 17328 17442 18411 18848 18972 19494 20026 20577 21204 22382 23256 24548 25296 25992 26784 27436 28272 28458 30039 31008 31806 33573 34656 34884 36822 37944 38988 40052 41154 42408 44764 46512 49096 50592 51984 54872 55233 56544 56916 60078 61731 63612 67146 69768 73644 75888 77976 80104 82308 84816 89528 90117 93024 98192 100719 103968 109744 110466 113832 116603 120156 123462 127224 130321 134292 139536 147288 151776 155952 160208 164616 165699 169632 179056 180234 185193 190247 196384 201438 212629 219488 220932 227664 233206 240312 246924 254448 260642 268584 270351 279072 294576 302157 311904 320416 329232 331398 349809 358112 360468 370386 380494 390963 402876 425258 441864 455328 466412 480624 493848 508896 521284 537168 540702 570741 589152 604314 637887 658464 662796 699618 720936 740772 760988 781926 805752 850516 883728 932824 961248 987696 1042568 1049427 1074336 1081404 1141482 1172889 1208628 1275774 1325592 1399236 1441872 1481544 1521976 1563852 1611504 1701032 1712223 1767456 1865648 1913661 1975392 2085136 2098854 2162808 2215457 2282964 2345778 2417256 2476099 2551548 2651184 2798472 2883744 2963088 3043952 3127704 3148281 3223008 3402064 3424446 3518667 3614693 3731296 3827322 4039951 4170272 4197708 4325616 4430914 4565928 4691556 4834512 4952198 5103096 5136669 5302368 5596944 5740983 5926176 6087904 6255408 6296562 6646371 6804128 6848892 7037334 7229386 7428297 7654644 8079902 8395416 8651232 8861828 9131856 9383112 9669024 9904396 10206192 10273338 10844079 11193888 11481966 12119853 12510816 12593124 13292742 13697784 14074668 14458772 14856594 15309288 16159804 16790832 17723656 18263712 18766224 19808792 19939113 20412384 20546676 21688158 22284891 22963932 24239706 25186248 26585484 27395568 28149336 28917544 29713188 30618576 32319608 32532237 33581664 35447312 36359559 37532448 39617584 39878226 41093352 42093683 43376316 44569782 45927864 47045881 48479412 50372496 53170968 54791136 56298672 57835088 59426376 59817339 61237152 64639216 65064474 66854673 68679167 70894624 72719118 76759069 79235168 79756452 82186704 84187366 86752632 89139564 91855728 94091762 96958824 97596711 100744992 106341936 109078677 112597344 115670176 118852752 119634678 126281049 129278432 130128948 133709346 137358334 141137643 145438236 153518138 159512904 164373408 168374732 173505264 178279128 183711456 188183524 193917648 195193422 206037501 212683872 218157354 230277207 237705504 239269356 252562098 260257896 267418692 274716668 282275286 290876472 307036276 319025808 336749464 347010528 356558256 376367048 378843147 387835296 390386844 412075002 423412929 436314708 460554414 478538712 505124196 520515792 534837384 549433336 564550572 581752944 614072552 618112503 638051616 673498928 690831621 713116512 752734096 757686294 780773688 799779977 824150004 846825858 872629416 921108828 957077424 1010248392 1041031584 1069674768 1098866672 1129101144 1136529441 1163505888 1228145104 1236225006 1270238787 1304904173 1346997856 1381663242 1458422311 1505468192 1515372588 1561547376 1599559954 1648300008 1693651716 1745258832 1842217656 1854337509 1914154848 2020496784 2072494863 2139349536 2197733344 2258202288 2273058882 2399339931 2456290208 2472450012 2540477574 2609808346 2763326484 2916844622 3030745176 3123094752 3199119908 3296600016 3387303432 3490517664 3684435312 3708675018 3914712519 4040993568 4144989726 4375266933 4516404576 4546117764 4798679862 4944900024 5080955148 5219616692 5526652968 5833689244 6061490352 6398239816 6593200032 6774606864 7198019793 7368870624 7417350036 7829425038 8289979452 8750533866 9092235528 9597359724 9889800048 10161910296 10439233384 11053305936 11667378488 11744137557 12122980704 12796479632 13125800799 13549213728 14396039586 14834700072 15658850076 16579958904 17501067732 18184471056 19194719448 19779600096 20323820592 20878466768 21594059379 22106611872 23334756976 23488275114 24793179287 25592959264 26251601598 28792079172 29669400144 31317700152 33159917808 35002135464 35232412671 36368942112 38389438896 39377402397 40647641184 41756933536 43188118758 46669513952 46976550228 49586358574 52503203196 57584158344 59338800288 62635400304 66319835616 70004270928 70464825342 74379537861 76778877792 78754804794 86376237516 93953100456 99172717148 105006406392 115168316688 125270800608 140008541856 140929650684 148759075722 157509609588 172752475032 187906200912 198345434296 210012812784 223138613583 230336633376 281859301368 297518151444 315019219176 345504950064 375812401824 396690868592 420025625568 446277227166 563718602736 595036302888 630038438352 669415840749 691009900128 793381737184 892554454332 1127437205472 1190072605776 1260076876704 1338831681498 1785108908664 2380145211552 2677663362996 3570217817328 5355326725992 7140435634656 10710653451984 21421306903968
• Sum of all divisors σ(n): 72081816952320
• Sum of proper divisors (its aliquot sum) s(n): 50660510048352
• 21421306903968 is an abundant number, because the sum of its proper divisors (50660510048352) is greater than itself. Its abundance is 29239203144384

Bases of 21421306903968

• Binary: 100110111101110001001011000110111110110100000₂
• Hexadecimal: 0x137B89637DA0
• Base-36: 7LCT91RC0

Squares and roots of 21421306903968

• 21421306903968 squared (21421306903968²) is 458872389473987101574145024
• 21421306903968 cubed (21421306903968³) is 9829646284679412910894014483258073055232
• The square root of 21421306903968 is 4628315.7740119677
• The cube root of 21421306903968 is 27772.5221067005

Scales and comparisons

• 21,421,306,903,968 seconds is equal to 681,131 years, 15 weeks, 3 days, 20 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,421,306,903,968 would take you about one million, seven hundred two thousand, eight hundred twenty-eight 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 21421306903968 cubic inches would be around 2314.4 feet tall.

Recreational maths with 21421306903968

• 21421306903968 backwards is 86930960312412
• 21421306903968 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21421306903968's digits is 54
• More coming soon!