21435640678400

Names of 21435640678400

• Cardinal: 21435640678400 can be written as Twenty-one trillion, four hundred thirty-five billion, six hundred forty million, six hundred seventy-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.14356406784 × 10¹³

Factors of 21435640678400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 32205009

Divisors of 21435640678400

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 200 208 256 260 320 325 400 416 512 520 640 650 800 832 1024 1040 1280 1300 1600 1664 2048 2080 2560 2600 3200 3328 4160 5120 5200 6400 6656 8320 10240 10400 12800 13312 16640 20800 25600 26624 33280 41600 51200 66560 83200 133120 166400 332800 665600 32204989 64409978 128819956 161024945 257639912 322049890 418664857 515279824 644099780 805124725 837329714 1030559648 1288199560 1610249450 1674659428 2061119296 2093324285 2576399120 3220498900 3349318856 4122238592 4186648570 5152798240 6440997800 6698637712 8244477184 8373297140 10305596480 10466621425 12881995600 13397275424 16488954368 16746594280 20611192960 20933242850 25763991200 26794550848 32977908736 33493188560 41222385920 41866485700 51527982400 53589101696 65955817472 66986377120 82444771840 83732971400 103055964800 107178203392 133972754240 164889543680 167465942800 206111929600 214356406784 267945508480 329779087360 334931885600 412223859200 428712813568 535891016960 669863771200 824447718400 857425627136 1071782033920 1339727542400 1648895436800 2143564067840 2679455084800 4287128135680 5358910169600 10717820339200 21435640678400
• Sum of all divisors σ(n): 57235674377700
• Sum of proper divisors (its aliquot sum) s(n): 35800033699300
• 21435640678400 is an abundant number, because the sum of its proper divisors (35800033699300) is greater than itself. Its abundance is 14364393020900

Bases of 21435640678400

• Binary: 100110111111011011111101111111000100000000000₂
• Hexadecimal: 0x137EDFBF8800
• Base-36: 7LJEB0AGW

Squares and roots of 21435640678400

• 21435640678400 squared (21435640678400²) is 459486691293476812226560000
• 21435640678400 cubed (21435640678400³) is 9849391611073874668730808012898304000000
• The square root of 21435640678400 is 4629864.0021495231
• The cube root of 21435640678400 is 27778.7152599475

Scales and comparisons

• 21,435,640,678,400 seconds is equal to 681,587 years, 3 weeks, 4 days, 53 minutes, 20 seconds.
• To count from 1 to 21,435,640,678,400 would take you about one million, seven hundred three thousand, nine hundred sixty-seven 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 21435640678400 cubic inches would be around 2314.9 feet tall.

Recreational maths with 21435640678400

• 21435640678400 backwards is 00487604653412
• 21435640678400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21435640678400's digits is 50
• More coming soon!