21006815133798400

Names of 21006815133798400

• Cardinal: 21006815133798400 can be written as Twenty-one quadrillion, six trillion, eight hundred fifteen billion, one hundred thirty-three million, seven hundred ninety-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.10068151337984 × 10¹⁶

Factors of 21006815133798400

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 680

Divisors of 21006815133798400

• Number of divisors d(n): 195
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 673 800 1024 1280 1346 1600 2048 2560 2692 3200 3365 4096 5120 5384 6400 6730 10240 10768 12800 13460 16825 20480 21536 25600 26920 33650 43072 51200 53840 67300 86144 102400 107680 134600 172288 215360 269200 344576 430720 452929 538400 689152 861440 905858 1076800 1378304 1722880 1811716 2153600 2264645 2756608 3445760 3623432 4307200 4529290 6891520 7246864 8614400 9058580 11323225 13783040 14493728 17228800 18117160 22646450 28987456 34457600 36234320 45292900 57974912 68915200 72468640 90585800 115949824 144937280 181171600 231899648 289874560 304821217 362343200 463799296 579749120 609642434 724686400 927598592 1159498240 1219284868 1449372800 1524106085 1855197184 2318996480 2438569736 2898745600 3048212170 4637992960 4877139472 5797491200 6096424340 7620530425 9275985920 9754278944 11594982400 12192848680 15241060850 19508557888 23189964800 24385697360 30482121700 39017115776 46379929600 48771394720 60964243400 78034231552 97542789440 121928486800 156068463104 195085578880 205144679041 243856973600 312136926208 390171157760 410289358082 487713947200 624273852416 780342315520 820578716164 975427894400 1025723395205 1248547704832 1560684631040 1641157432328 1950855788800 2051446790410 3121369262080 3282314864656 3901711577600 4102893580820 5128616976025 6242738524160 6564629729312 7803423155200 8205787161640 10257233952050 13129259458624 15606846310400 16411574323280 20514467904100 26258518917248 31213692620800 32823148646560 41028935808200 52517037834496 65646297293120 82057871616400 105034075668992 131292594586240 164115743232800 210068151337984 262585189172480 328231486465600 420136302675968 525170378344960 656462972931200 840272605351936 1050340756689920 1312925945862400 2100681513379840 2625851891724800 4201363026759680 5251703783449600 10503407566899200 21006815133798400
• Sum of all divisors σ(n): 52168057734338981
• Sum of proper divisors (its aliquot sum) s(n): 31161242600540581
• 21006815133798400 is an abundant number, because the sum of its proper divisors (31161242600540581) is greater than itself. Its abundance is 10154427466742181

Bases of 21006815133798400

• Binary: 1001010101000011001011001001001111010011001000000000000₂
• Hexadecimal: 0x4AA19649E99000
• Base-36: 5QUALNARPJ4

Squares and roots of 21006815133798400

• 21006815133798400 squared (21006815133798400²) is 441286282065581490094011842560000
• 21006815133798400 cubed (21006815133798400³) is 9270019348432886712152737828661680515579904000000
• 21006815133798400 is a perfect square number. Its square root is 144937280
• The cube root of 21006815133798400 is 275922.2595488775

Scales and comparisons

• 21,006,815,133,798,400 seconds is equal to 667,951,742 years, 47 weeks, 1 day, 23 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,006,815,133,798,400 would take you about two billion, three million, eight hundred fifty-five thousand, two hundred twenty-eight 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 21006815133798400 cubic inches would be around 22993.5 feet tall.

Recreational maths with 21006815133798400

• 21006815133798400 backwards is 00489733151860012
• The number of decimal digits it has is: 17
• The sum of 21006815133798400's digits is 58
• More coming soon!