21428223678942400

Names of 21428223678942400

• Cardinal: 21428223678942400 can be written as Twenty-one quadrillion, four hundred twenty-eight trillion, two hundred twenty-three billion, six hundred seventy-eight million, nine hundred forty-two thousand, four hundred.

Scientific notation

• Scientific notation: 2.14282236789424 × 10¹⁶

Factors of 21428223678942400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8272169507

Divisors of 21428223678942400

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 1619 3238 6476 8095 12952 16190 25904 32380 40475 51808 64760 80950 103616 129520 161900 259040 323800 518080 647600 1295200 2590400 8272167881 16544335762 33088671524 41360839405 66177343048 82721678810 132354686096 165443357620 206804197025 264709372192 330886715240 413608394050 529418744384 661773430480 827216788100 1323546860960 1654433576200 2647093721920 3308867152400 6617734304800 13235468609600 13392639799339 26785279598678 53570559197356 66963198996695 107141118394712 133926397993390 214282236789424 267852795986780 334815994983475 428564473578848 535705591973560 669631989966950 857128947157696 1071411183947120 1339263979933900 2142822367894240 2678527959867800 4285644735788480 5357055919735600 10714111839471200 21428223678942400
• Sum of all divisors σ(n): 52759390421323080
• Sum of proper divisors (its aliquot sum) s(n): 31331166742380680
• 21428223678942400 is an abundant number, because the sum of its proper divisors (31331166742380680) is greater than itself. Its abundance is 9902943063438280

Bases of 21428223678942400

• Binary: 1001100001000001101101100011100100011010000110011000000₂
• Hexadecimal: 0x4C20DB1C8D0CC0
• Base-36: 5UZO6263OHS

Squares and roots of 21428223678942400

• 21428223678942400 squared (21428223678942400²) is 459168770034787763673182517760000
• 21428223678942400 cubed (21428223678942400³) is 9839171110690296690127141869166094726017024000000
• The square root of 21428223678942400 is 146383823.1463517967
• The cube root of 21428223678942400 is 277755.1096284247

Scales and comparisons

• 21,428,223,678,942,400 seconds is equal to 681,351,231 years, 7 weeks, 2 days, 21 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,428,223,678,942,400 would take you about two billion, forty-four million, fifty-three thousand, six hundred ninety-three 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 21428223678942400 cubic inches would be around 23146.3 feet tall.

Recreational maths with 21428223678942400

• 21428223678942400 backwards is 00424987632282412
• 21428223678942400 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21428223678942400's digits is 64
• More coming soon!