21394946843648

Names of 21394946843648

• Cardinal: 21394946843648 can be written as Twenty-one trillion, three hundred ninety-four billion, nine hundred forty-six million, eight hundred forty-three thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1394946843648 × 10¹³

Factors of 21394946843648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 8299

Divisors of 21394946843648

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 4 7 8 14 16 28 29 32 56 58 64 71 112 116 128 142 181 203 224 232 256 284 362 406 448 464 497 512 568 724 812 896 928 994 1024 1136 1267 1448 1624 1792 1856 1988 2059 2272 2534 2896 3248 3584 3712 3976 4118 4544 5068 5249 5792 6496 7168 7424 7952 8009 8236 9088 10136 10498 11584 12851 12992 14413 14848 15904 16018 16472 18176 20272 20996 23168 25702 25984 28826 29696 31808 32036 32944 36352 36743 40544 41992 46336 51404 51968 56063 57652 63616 64072 65888 72704 73486 81088 83984 89957 92672 102808 103936 112126 115304 127232 128144 131776 146972 162176 167968 179914 185344 205616 207872 224252 230608 232261 254464 256288 263552 293944 324352 335936 359828 372679 411232 448504 461216 464522 508928 512576 527104 568639 587888 648704 671872 719656 745358 822464 897008 922432 929044 1025152 1054208 1137278 1175776 1297408 1343744 1439312 1449629 1490716 1625827 1644928 1794016 1844864 1858088 2050304 2108416 2274556 2351552 2608753 2687488 2878624 2899258 2981432 3251654 3289856 3588032 3689728 3716176 3980473 4100608 4549112 4703104 5217506 5374976 5757248 5798516 5962864 6503308 6579712 7176064 7379456 7432352 7960946 8201216 9098224 9406208 10147403 10435012 11514496 11597032 11925728 13006616 13159424 14352128 14758912 14864704 15921892 16490531 18196448 18812416 20294806 20870024 23028992 23194064 23851456 26013232 28704256 29729408 31843784 32981062 36392896 37624832 40589612 41740048 42039241 46057984 46388128 47702912 52026464 57408512 59458816 63687568 65962124 72785792 81179224 83480096 84078482 92115968 92776256 95405824 102923659 104052928 115433717 118917632 127375136 131924248 145571584 162358448 166960192 168156964 185552512 190811648 205847318 208105856 230867434 237835264 254750272 263848496 291143168 294274687 324716896 333920384 336313928 371105024 381623296 411694636 416211712 461734868 509500544 527696992 582286336 588549374 649433792 667840768 672627856 720465613 742210048 823389272 832423424 923469736 1019001088 1055393984 1177098748 1298867584 1335681536 1345255712 1440931226 1484420096 1646778544 1664846848 1846939472 2038002176 2110787968 2354197496 2597735168 2671363072 2690511424 2881862452 2984786111 3293557088 3693878944 4076004352 4221575936 4708394992 5195470336 5381022848 5763724904 5969572222 6587114176 7387757888 8443151872 9416789984 10390940672 10762045696 11527449808 11939144444 13174228352 14775515776 16886303744 18833579968 20893502777 21524091392 23054899616 23878288888 26348456704 29551031552 37667159936 41787005554 43048182784 46109799232 47756577776 52696913408 59102063104 75334319872 83574011108 92219598464 95513155552 105393826816 118204126208 150668639744 167148022216 184439196928 191026311104 301337279488 334296044432 368878393856 382052622208 668592088864 737756787712 764105244416 1337184177728 1528210488832 2674368355456 3056420977664 5348736710912 10697473421824 21394946843648
• Sum of all divisors σ(n): 51566242291200
• Sum of proper divisors (its aliquot sum) s(n): 30171295447552
• 21394946843648 is an abundant number, because the sum of its proper divisors (30171295447552) is greater than itself. Its abundance is 8776348603904

Bases of 21394946843648

• Binary: 100110111010101100110001101001110010000000000₂
• Hexadecimal: 0x13756634E400
• Base-36: 7L0PAY6M8

Squares and roots of 21394946843648

• 21394946843648 squared (21394946843648²) is 457743750442523517757947904
• 21394946843648 cubed (21394946843648³) is 9793403208729866339495417186350417313792
• The square root of 21394946843648 is 4625467.2027426591
• The cube root of 21394946843648 is 27761.1255743175

Scales and comparisons

• 21,394,946,843,648 seconds is equal to 680,293 years, 6 weeks, 5 days, 13 hours, 54 minutes, 8 seconds.
• To count from 1 to 21,394,946,843,648 would take you about one million, seven hundred thousand, seven hundred thirty-two 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 21394946843648 cubic inches would be around 2313.4 feet tall.

Recreational maths with 21394946843648

• 21394946843648 backwards is 84634864949312
• 21394946843648 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21394946843648's digits is 71
• More coming soon!