21007606470470928

Names of 21007606470470928

• Cardinal: 21007606470470928 can be written as Twenty-one quadrillion, seven trillion, six hundred six billion, four hundred seventy million, four hundred seventy thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1007606470470928 × 10¹⁶

Factors of 21007606470470928

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 270660771906

Divisors of 21007606470470928

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 33 36 42 44 48 49 56 63 66 72 77 84 88 98 99 112 126 132 144 147 154 168 176 196 198 231 252 264 294 308 336 392 396 441 462 504 528 539 588 616 693 784 792 882 924 1008 1078 1176 1232 1386 1584 1617 1764 1848 2156 2352 2772 3234 3528 3696 4312 4851 5544 6468 7056 8624 9702 11088 12936 19404 25872 38808 77616 270660771883 541321543766 811982315649 1082643087532 1623964631298 1894625403181 2165286175064 2435946946947 2977268490713 3247929262596 3789250806362 4330572350128 4871893893894 5683876209543 5954536981426 6495858525192 7578501612724 8931805472139 9743787787788 11367752419086 11909073962852 12991717050384 13262377822267 15157003225448 17051628628629 17863610944278 19487575575576 20840879434991 22735504838172 23818147925704 26524755644534 26795416416417 30314006450896 34103257257258 35727221888556 38975151151152 39787133466801 41681758869982 45471009676344 47636295851408 53049511289068 53590832832834 62522638304973 68206514514516 71454443777112 79574266933602 83363517739964 90942019352688 106099022578136 107181665665668 119361400400403 125045276609946 136413029029032 142908887554224 145886156044937 159148533867204 166727035479928 187567914914919 212198045156272 214363331331336 238722800800806 250090553219892 272826058058064 291772312089874 318297067734408 333454070959856 375135829829838 428726662662672 437658468134811 477445601601612 500181106439784 583544624179748 636594135468816 750271659659676 875316936269622 954891203203224 1000362212879568 1167089248359496 1312975404404433 1500543319319352 1750633872539244 1909782406406448 2334178496718992 2625950808808866 3001086638638704 3501267745078488 5251901617617732 7002535490156976 10503803235235464 21007606470470928
• Sum of all divisors σ(n): 74608183091368368
• Sum of proper divisors (its aliquot sum) s(n): 53600576620897440
• 21007606470470928 is an abundant number, because the sum of its proper divisors (53600576620897440) is greater than itself. Its abundance is 32592970150426512

Bases of 21007606470470928

• Binary: 1001010101000100100111010001001010000001110110100010000₂
• Hexadecimal: 0x4AA24E8940ED10
• Base-36: 5QUKP6K6XW0

Squares and roots of 21007606470470928

• 21007606470470928 squared (21007606470470928²) is 441319529618172001099630093181184
• 21007606470470928 cubed (21007606470470928³) is 9271067005951896483317462764253590481182108618752
• The square root of 21007606470470928 is 144940009.9022727679
• The cube root of 21007606470470928 is 275925.7242127601

Scales and comparisons

• 21,007,606,470,470,928 seconds is equal to 667,976,904 years, 50 weeks, 2 days, 5 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,007,606,470,470,928 would take you about two billion, three million, nine hundred thirty thousand, seven hundred fourteen 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 21007606470470928 cubic inches would be around 22993.8 feet tall.

Recreational maths with 21007606470470928

• 21007606470470928 backwards is 82907407460670012
• 21007606470470928 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21007606470470928's digits is 63
• More coming soon!