21420892391472

Names of 21420892391472

• Cardinal: 21420892391472 can be written as Twenty-one trillion, four hundred twenty billion, eight hundred ninety-two million, three hundred ninety-one thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1420892391472 × 10¹³

Factors of 21420892391472

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19932

Divisors of 21420892391472

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 28 34 36 42 48 51 56 61 63 68 72 84 102 112 119 122 126 136 144 153 168 183 204 238 244 252 272 306 336 357 366 408 427 476 488 504 549 612 714 732 816 854 952 976 1008 1037 1071 1093 1098 1224 1281 1428 1464 1708 1904 2074 2142 2186 2196 2448 2562 2856 2928 3111 3279 3416 3843 4148 4284 4372 4392 5124 5712 6222 6558 6832 7259 7651 7686 8296 8568 8744 8784 9333 9837 10248 12444 13116 14518 15302 15372 16592 17136 17488 18581 18666 18749 19674 20496 21777 22953 24888 26232 29036 30604 30744 37162 37332 37498 39348 43554 45906 49776 52464 55743 56247 58072 61208 61488 65331 66673 68859 74324 74664 74996 78696 87108 91812 111486 112494 116144 122416 130067 130662 131243 133346 137718 148648 149328 149992 157392 167229 168741 174216 183624 200019 222972 224988 260134 261324 262486 266692 275436 297296 299984 318733 334458 337482 348432 367248 390201 393729 400038 445944 449976 466711 520268 522648 524972 533384 550872 600057 637466 668916 674964 780402 787458 800076 891888 899952 933422 956199 1040536 1045296 1049944 1066768 1101744 1133441 1143689 1170603 1181187 1200114 1274932 1337832 1349928 1400133 1560804 1574916 1600152 1866844 1912398 2081072 2099888 2231131 2266882 2287378 2341206 2362374 2400228 2549864 2675664 2699856 2800266 2868597 3121608 3149832 3200304 3400323 3431067 3733688 3824796 4200399 4462262 4533764 4574756 4682412 4724748 4800456 5099728 5600532 5737194 6243216 6299664 6693393 6800646 6862134 7467376 7649592 7934087 8005823 8400798 8924524 9067528 9149512 9364824 9449496 9600912 10200969 10293201 11201064 11474388 13386786 13601292 13724268 15299184 15868174 16011646 16801596 17849048 18135056 18299024 18729648 18898992 19442713 20080179 20401938 20492657 20586402 22402128 22948776 23802261 24017469 26773572 27202584 27448536 31736348 32023292 33603192 35698096 38885426 40160358 40803876 40985314 41172804 45897552 47604522 48034938 53547144 54405168 54897072 58328139 61477971 63472696 64046584 67206384 71406783 72052407 77770852 80320716 81607752 81970628 82345608 95209044 96069876 107094288 116656278 122955942 126945392 128093168 136098991 142813566 143448599 144104814 155541704 160641432 163215504 163941256 164691216 174984417 184433913 190418088 192139752 233312556 245911884 272197982 285627132 286897198 288209628 311083408 321282864 327882512 348375169 349968834 368867826 380836176 384279504 408296973 430345797 466625112 491823768 544395964 571254264 573794396 576419256 696750338 699937668 737735652 816593946 860691594 933250224 983647536 1045125507 1088791928 1142508528 1147588792 1152838512 1224890919 1250052077 1291037391 1393500676 1399875336 1475471304 1633187892 1721383188 2090251014 2177583856 2295177584 2438626183 2449781838 2500104154 2582074782 2787001352 2799750672 2950942608 3135376521 3266375784 3442766376 3750156231 4180502028 4877252366 4899563676 5000208308 5164149564 5574002704 6270753042 6532751568 6885532752 7315878549 7500312462 8361004056 8750364539 9754504732 9799127352 10000416616 10328299128 11250468693 12541506084 14631757098 15000624924 16722008112 17500729078 19509009464 19598254704 20000833232 20656598256 21250885309 21947635647 22500937386 25083012168 26251093617 29263514196 30001249848 35001458156 39018018928 42501770618 43895271294 45001874772 50166024336 52502187234 58527028392 60002499696 63752655927 70002916312 78753280851 85003541236 87790542588 90003749544 105004374468 117054056784 127505311854 140005832624 148756197163 157506561702 170007082472 175581085176 180007499088 191257967781 210008748936 255010623708 297512394326 315013123404 340014164944 351162170352 382515935562 420017497872 446268591489 510021247416 595024788652 630026246808 765031871124 892537182978 1020042494832 1190049577304 1260052493616 1338805774467 1530063742248 1785074365956 2380099154608 2677611548934 3060127484496 3570148731912 5355223097868 7140297463824 10710446195736 21420892391472
• Sum of all divisors σ(n): 73803646800000
• Sum of proper divisors (its aliquot sum) s(n): 52382754408528
• 21420892391472 is an abundant number, because the sum of its proper divisors (52382754408528) is greater than itself. Its abundance is 30961862017056

Bases of 21420892391472

• Binary: 100110111101101110000101011101000100000110000₂
• Hexadecimal: 0x137B70AE8830
• Base-36: 7LCME9BG0

Squares and roots of 21420892391472

• 21420892391472 squared (21420892391472²) is 458854630847023019298326784
• 21420892391472 cubed (21420892391472³) is 9829075670702688664849169231525910786048
• The square root of 21420892391472 is 4628270.9937375101
• The cube root of 21420892391472 is 27772.3429683663

Scales and comparisons

• 21,420,892,391,472 seconds is equal to 681,118 years, 6 weeks, 1 day, 6 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,420,892,391,472 would take you about one million, seven hundred two thousand, seven hundred ninety-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 21420892391472 cubic inches would be around 2314.4 feet tall.

Recreational maths with 21420892391472

• 21420892391472 backwards is 27419329802412
• The number of decimal digits it has is: 14
• The sum of 21420892391472's digits is 54
• More coming soon!