21242721689511392

Names of 21242721689511392

• Cardinal: 21242721689511392 can be written as Twenty-one quadrillion, two hundred forty-two trillion, seven hundred twenty-one billion, six hundred eighty-nine million, five hundred eleven thousand, three hundred ninety-two.

Scientific notation

• Scientific notation: 2.1242721689511392 × 10¹⁶

Factors of 21242721689511392

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 809

Divisors of 21242721689511392

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 32 49 56 62 98 112 124 196 217 224 248 392 434 496 769 784 868 961 992 1519 1538 1568 1736 1922 3038 3076 3472 3844 5383 6076 6152 6727 6944 7688 10766 12152 12304 13454 15376 21532 23839 24304 24608 26908 29791 30752 37681 43064 47089 47678 48608 53816 59582 75362 86128 94178 95356 107632 119164 150724 166873 172256 188356 190712 208537 215264 238328 301448 333746 376712 381424 417074 476656 591361 602896 667492 739009 753424 762848 834148 953312 1168111 1182722 1205792 1334984 1459759 1478018 1506848 1668296 2336222 2365444 2669968 2919518 2956036 3336592 4139527 4672444 4730888 5173063 5339936 5839036 5912072 6673184 8279054 9344888 9461776 10346126 11678072 11824144 16558108 18332191 18689776 18923552 20692252 22909279 23356144 23648288 28976689 33116216 36211441 36664382 37379552 41384504 45818558 46712288 57953378 66232432 72422882 73328764 82769008 91637116 115906756 128325337 132464864 144845764 146657528 160364953 165538016 183274232 231813512 256650674 289691528 293315056 320729906 366548464 454756609 463627024 513301348 568297921 579383056 586630112 641459812 733096928 898277359 909513218 927254048 1026602696 1122554671 1136595842 1158766112 1282919624 1796554718 1819026436 2053205392 2245109342 2273191684 2565839248 3183296263 3593109436 3638052872 3978085447 4106410784 4490218684 4546383368 5131678496 6366592526 7186218872 7276105744 7956170894 8980437368 9092766736 12733185052 14097454879 14372437744 14552211488 15912341788 17617235551 17960874736 18185533472 22283073841 25466370104 27846598129 28194909758 28744875488 31824683576 35234471102 35921749472 44566147682 50932740208 55693196258 56389819516 63649367152 70468942204 89132295364 98682184153 101865480416 111386392516 112779639032 123320648857 127298734304 140937884408 178264590728 197364368306 222772785032 225559278064 246641297714 281875768816 356529181456 394728736612 437021101249 445545570064 451118556128 493282595428 563751537632 690775289071 713058362912 789457473224 863244541999 874042202498 891091140128 986565190856 1381550578142 1578914946448 1726489083998 1748084404996 1973130381712 2763101156284 3059147708743 3157829892896 3452978167996 3496168809992 3946260763424 5526202312568 6118295417486 6905956335992 6992337619984 11052404625136 12236590834972 13547654138719 13811912671984 13984675239968 21414033961201 22104809250272 24473181669944 27095308277438 27623825343968 42828067922402 48946363339888 54190616554876 85656135844804 94833578971033 97892726679776 108381233109752 171312271689608 189667157942066 216762466219504 342624543379216 379334315884132 433524932439008 663835052797231 685249086758432 758668631768264 1327670105594462 1517337263536528 2655340211188924 3034674527073056 5310680422377848 10621360844755696 21242721689511392
• Sum of all divisors σ(n): 50336683103266560
• Sum of proper divisors (its aliquot sum) s(n): 29093961413755168
• 21242721689511392 is an abundant number, because the sum of its proper divisors (29093961413755168) is greater than itself. Its abundance is 7851239724243776

Bases of 21242721689511392

• Binary: 1001011011110000010010010010000010111011010010111100000₂
• Hexadecimal: 0x4B7824905DA5E0
• Base-36: 5T5WZMF44BK

Squares and roots of 21242721689511392

• 21242721689511392 squared (21242721689511392²) is 451253224778037728581223697777664
• 21242721689511392 cubed (21242721689511392³) is 9585846665454381556918346113036973301808411148288
• The square root of 21242721689511392 is 145748830.8341147277
• The cube root of 21242721689511392 is 276951.2862048501

Scales and comparisons

• 21,242,721,689,511,392 seconds is equal to 675,452,841 years, 35 weeks, 8 hours, 16 minutes, 32 seconds.
• To count from 1 to 21,242,721,689,511,392 would take you about two billion, twenty-six million, three hundred fifty-eight thousand, five hundred twenty-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 21242721689511392 cubic inches would be around 23079.3 feet tall.

Recreational maths with 21242721689511392

• 21242721689511392 backwards is 29311598612724212
• The number of decimal digits it has is: 17
• The sum of 21242721689511392's digits is 65
• More coming soon!