21382805797617664

Names of 21382805797617664

• Cardinal: 21382805797617664 can be written as Twenty-one quadrillion, three hundred eighty-two trillion, eight hundred five billion, seven hundred ninety-seven million, six hundred seventeen thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1382805797617664 × 10¹⁶

Factors of 21382805797617664

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 11414

Divisors of 21382805797617664

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 4 8 16 32 64 101 128 202 256 404 512 808 1024 1616 2048 3232 4096 6464 8192 10201 11311 12928 16384 20402 22622 25856 40804 45244 51712 81608 90488 103424 163216 180976 206848 326432 361952 413696 652864 723904 827392 1142411 1305728 1447808 1654784 2284822 2611456 2895616 4569644 5222912 5791232 9139288 10445824 11582464 18278576 20891648 23164928 36557152 41783296 46329856 73114304 83566592 92659712 115383511 127938721 146228608 167133184 185319424 230767022 255877442 292457216 461534044 511754884 584914432 923068088 1023509768 1169828864 1846136176 2047019536 2339657728 3692272352 4094039072 4679315456 7384544704 8188078144 9358630912 12921810821 14769089408 16376156288 18717261824 25843621642 29538178816 32752312576 51687243284 59076357632 65504625152 103374486568 118152715264 131009250304 206748973136 236305430528 262018500608 413497946272 472610861056 524037001216 826995892544 945221722112 1048074002432 1305102892921 1653991785088 1890443444224 2096148004864 2610205785842 3307983570176 5220411571684 6615967140352 10440823143368 13231934280704 20881646286736 26463868561408 41763292573472 52927737122816 83526585146944 105855474245632 167053170293888 211710948491264 334106340587776 668212681175552 1336425362351104 2672850724702208 5345701449404416 10691402898808832 21382805797617664
• Sum of all divisors σ(n): 43195726548697233
• Sum of proper divisors (its aliquot sum) s(n): 21812920751079569
• 21382805797617664 is an abundant number, because the sum of its proper divisors (21812920751079569) is greater than itself. Its abundance is 430114953461905

Bases of 21382805797617664

• Binary: 1001011111101111000110001101111110111100100000000000000₂
• Hexadecimal: 0x4BF78C6FDE4000
• Base-36: 5UJKLDG7SHS

Squares and roots of 21382805797617664

• 21382805797617664 squared (21382805797617664²) is 457224383778631583928977924816896
• 21382805797617664 cubed (21382805797617664³) is 9776740204273887239346085905715662173300215250944
• 21382805797617664 is a perfect square number. Its square root is 146228608
• The cube root of 21382805797617664 is 277558.7335469457

Scales and comparisons

• 21,382,805,797,617,664 seconds is equal to 679,907,083 years, 1 day, 4 hours, 1 minute, 4 seconds.
• To count from 1 to 21,382,805,797,617,664 would take you about two billion, thirty-nine million, seven hundred twenty-one thousand, two hundred forty-nine 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 21382805797617664 cubic inches would be around 23129.9 feet tall.

Recreational maths with 21382805797617664

• 21382805797617664 backwards is 46671679750828312
• The number of decimal digits it has is: 17
• The sum of 21382805797617664's digits is 82
• More coming soon!