21490681212

Names of 21490681212

• Cardinal: 21490681212 can be written as Twenty-one billion, four hundred ninety million, six hundred eighty-one thousand, two hundred twelve.

Scientific notation

• Scientific notation: 2.1490681212 × 10¹⁰

Factors of 21490681212

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 169

Divisors of 21490681212

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 13 14 18 21 22 23 26 27 28 33 36 39 42 43 44 46 52 54 63 66 67 69 77 78 81 84 86 91 92 99 108 117 126 129 132 134 138 143 154 156 161 162 172 182 189 198 201 207 231 234 252 253 258 268 273 276 286 297 299 301 308 322 324 351 364 378 387 396 402 414 429 462 468 469 473 483 506 516 546 559 567 572 594 598 602 603 621 644 693 702 737 756 759 774 804 819 828 858 871 891 897 903 924 938 946 966 989 1001 1012 1053 1092 1118 1134 1161 1188 1196 1204 1206 1242 1287 1386 1404 1407 1419 1449 1474 1518 1541 1548 1638 1677 1716 1742 1771 1782 1794 1806 1809 1863 1876 1892 1932 1978 2002 2079 2093 2106 2211 2236 2268 2277 2322 2412 2457 2484 2574 2613 2691 2709 2772 2814 2838 2881 2898 2948 2967 3003 3036 3082 3276 3289 3311 3354 3483 3484 3542 3564 3588 3612 3618 3726 3861 3913 3956 4004 4158 4186 4212 4221 4257 4347 4422 4554 4623 4644 4914 5031 5148 5159 5226 5313 5382 5418 5427 5628 5676 5762 5796 5934 6006 6097 6149 6164 6237 6279 6578 6622 6633 6708 6831 6923 6966 7084 7236 7371 7452 7722 7826 7839 8073 8127 8316 8372 8442 8514 8643 8694 8844 8901 9009 9108 9246 9581 9828 9867 9933 10062 10318 10452 10626 10764 10787 10836 10854 10879 11524 11583 11739 11868 12012 12194 12298 12474 12558 12663 12771 12857 13041 13156 13244 13266 13662 13846 13869 13932 14742 15093 15444 15477 15652 15678 15939 16146 16254 16884 16951 17028 17286 17388 17802 18018 18291 18447 18492 18837 19162 19734 19866 19899 20033 20124 20167 20493 20636 20769 21252 21574 21708 21758 23023 23166 23478 23517 24219 24381 24388 24596 24948 25116 25326 25542 25714 25929 26082 26532 26703 27027 27324 27692 27738 28743 29484 29601 29799 30186 30954 31356 31691 31878 32292 32361 32508 32637 33902 34572 35217 35604 36036 36582 36894 37453 37674 37989 38313 38324 38571 39468 39732 39798 40066 40334 40986 41538 41607 43043 43148 43516 45279 46046 46332 46431 46956 47034 47817 48438 48762 50652 50853 51084 51428 51858 52164 53406 54054 54873 55341 55476 56511 57486 59202 59598 59697 60099 60372 60501 61908 62307 63382 63756 64722 65274 66263 67067 67804 69069 70434 70551 73164 73788 74906 75348 75978 76153 76626 77142 77787 79596 80109 80132 80668 81081 81972 83076 83214 86086 86229 88803 89397 89999 90558 92092 92862 94068 95073 95634 96876 97083 97524 97911 101706 103716 105651 106812 108108 109746 110682 112359 113022 114972 115713 118404 118657 119196 119394 120198 121002 124614 124821 126764 129129 129444 130548 132526 134134 138138 139293 140231 140868 141102 141427 143451 149812 151956 152306 152559 153252 154284 155574 160218 162162 164619 166023 166428 169533 172172 172458 177606 178794 179998 180297 181116 181503 185724 186921 190146 191268 194166 195822 198789 201201 203412 207207 211302 219492 220363 221364 221837 224718 226044 228459 231426 233361 237314 238788 240396 242004 249228 249642 258258 258687 262171 265052 266409 268191 268268 269997 276276 278586 280462 282204 282854 285219 286902 291249 293733 304612 305118 311148 316953 320436 324324 329238 332046 337077 339066 344916 347139 355212 355971 357588 359996 360594 363006 373842 380292 387387 388332 391644 397578 402402 411983 414414 417879 420693 422604 424281 440726 443674 449436 456918 457677 462852 463841 466722 474628 493857 498069 499284 516516 517374 524342 532818 536382 539994 540891 544509 557172 560763 560924 565708 570438 573804 582498 587466 596367 603603 610236 621621 633906 658476 661089 664092 665511 674154 678132 685377 694278 711942 721188 726012 728893 747684 774774 776061 786513 795156 804804 809991 823966 828828 835758 841386 848562 855657 861419 873747 881199 881452 887348 913836 915354 927682 933444 987714 989989 996138 1011231 1034748 1041417 1048684 1065636 1067913 1072764 1079988 1081782 1089018 1121526 1140876 1162161 1164996 1174932 1192734 1207206 1235949 1243242 1262079 1267812 1272843 1322178 1331022 1348308 1370754 1373031 1388556 1391523 1423884 1457786 1542541 1549548 1552122 1573026 1619982 1622673 1633527 1647932 1671516 1682772 1697124 1711314 1722838 1747494 1762398 1789101 1810809 1830708 1855364 1864863 1975428 1979978 1983267 1992276 1996533 2022462 2056131 2082834 2135826 2163564 2178036 2186679 2243052 2324322 2359539 2385468 2414412 2429973 2471898 2486484 2524158 2545686 2566971 2584257 2644356 2662044 2741508 2746062 2783046 2883881 2915572 2969967 3033693 3085082 3104244 3146052 3203739 3239964 3245346 3267054 3422628 3445676 3486483 3494988 3524796 3578202 3621618 3707847 3729726 3786237 3818529 3959956 3966534 3993066 4044924 4112262 4165668 4174569 4271652 4373358 4627623 4648644 4719078 4859946 4943796 5048316 5091372 5102251 5133942 5168514 5367303 5432427 5492124 5566092 5767762 5939934 5949801 5989599 6029933 6067386 6168393 6170164 6407478 6490692 6534108 6560037 6972966 7078617 7156404 7243236 7289919 7415694 7459452 7572474 7637058 7752771 7933068 7986132 8224524 8349138 8651643 8746716 8909901 9255246 9438156 9475609 9611217 9719892 10204502 10267884 10337028 10734606 10864854 11123541 11358711 11455587 11535524 11879868 11899602 11979198 12059866 12134772 12336786 12523707 12814956 13120074 13882869 13945932 14157234 14579838 14831388 15144948 15274116 15306753 15505542 16698276 17303286 17819802 17849403 17968797 18089799 18510492 18951218 19222434 19680111 20409004 21235851 21469212 21729708 22247082 22717422 22911174 23258313 23799204 23958396 24119732 24673572 25047414 25954929 26240148 26729703 27765738 28314468 28426827 29159676 30613506 31011084 33370623 34606572 35639604 35698806 35937594 36179598 37571121 37902436 38444868 39360222 41648607 42471702 44494164 45434844 45822348 45920259 46516626 50094828 51909858 53459406 54269397 55531476 56853654 59040333 61227012 66329263 66741246 69774939 71397612 71875188 72359196 75142242 77864787 78720444 80189109 83297214 84943404 85280481 91840518 93033252 103819716 106918812 108538794 113707308 118080666 124945821 132658526 133482492 137760777 139549878 150284484 155729574 160378218 162808191 166594428 170560962 183681036 198987789 217077588 233594361 236161332 249891642 255841443 265317052 275521554 279099756 311459148 320756436 325616382 341121924 397975578 413282331 467188722 488424573 499783284 511682886 551043108 596963367 651232764 767524329 795951156 826564662 934377444 976849146 1023365772 1193926734 1535048658 1653129324 1790890101 1953698292 2387853468 3070097316 3581780202 5372670303 7163560404 10745340606 21490681212
• Sum of all divisors σ(n): 81743929344
• Sum of proper divisors (its aliquot sum) s(n): 60253248132
• 21490681212 is an abundant number, because the sum of its proper divisors (60253248132) is greater than itself. Its abundance is 38762566920

Bases of 21490681212

• Binary: 10100000000111100011100010101111100₂
• Hexadecimal: 0x500F1C57C
• Base-36: 9VEZVR0

Squares and roots of 21490681212

• 21490681212 squared (21490681212²) is 461849378955809788944
• 21490681212 cubed (21490681212³) is 9925457771099489609504506120128
• The square root of 21490681212 is 146597.0027388009
• The cube root of 21490681212 is 2780.2470844683

Scales and comparisons

• 21,490,681,212 seconds is equal to 683 years, 17 weeks, 3 days, 17 hours, 40 minutes, 12 seconds.
• To count from 1 to 21,490,681,212 would take you about one thousand, three hundred sixty-six 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 21490681212 cubic inches would be around 231.7 feet tall.

Recreational maths with 21490681212

• 21490681212 backwards is 21218609412
• 21490681212 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21490681212's digits is 36
• More coming soon!