21021040000

Names of 21021040000

• Cardinal: 21021040000 can be written as Twenty-one billion, twenty-one million, forty thousand.

Scientific notation

• Scientific notation: 2.102104 × 10¹⁰

Factors of 21021040000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2203

Divisors of 21021040000

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 127 128 160 200 250 254 320 400 500 508 625 635 640 800 1000 1016 1250 1270 1600 2000 2032 2069 2500 2540 3175 3200 4000 4064 4138 5000 5080 6350 8000 8128 8276 10000 10160 10345 12700 15875 16000 16256 16552 20000 20320 20690 25400 31750 33104 40000 40640 41380 50800 51725 63500 66208 79375 80000 81280 82760 101600 103450 127000 132416 158750 165520 203200 206900 254000 258625 262763 264832 317500 331040 406400 413800 508000 517250 525526 635000 662080 827600 1016000 1034500 1051052 1270000 1293125 1313815 1324160 1655200 2032000 2069000 2102104 2540000 2586250 2627630 3310400 4138000 4204208 5080000 5172500 5255260 6569075 6620800 8276000 8408416 10160000 10345000 10510520 13138150 16552000 16816832 20690000 21021040 26276300 32845375 33104000 33633664 41380000 42042080 52552600 65690750 82760000 84084160 105105200 131381500 164226875 165520000 168168320 210210400 262763000 328453750 420420800 525526000 656907500 840841600 1051052000 1313815000 2102104000 2627630000 4204208000 5255260000 10510520000 21021040000
• Sum of all divisors σ(n): 52768108800
• Sum of proper divisors (its aliquot sum) s(n): 31747068800
• 21021040000 is an abundant number, because the sum of its proper divisors (31747068800) is greater than itself. Its abundance is 10726028800

Bases of 21021040000

• Binary: 10011100100111100111001110110000000₂
• Hexadecimal: 0x4E4F39D80
• Base-36: 9NNDU9S

Squares and roots of 21021040000

• 21021040000 squared (21021040000²) is 441884122681600000000
• 21021040000 cubed (21021040000³) is 9288863818254820864000000000000
• The square root of 21021040000 is 144986.3441845473
• The cube root of 21021040000 is 2759.8452619263

Scales and comparisons

• 21,021,040,000 seconds is equal to 668 years, 21 weeks, 1 hour, 46 minutes, 40 seconds.
• To count from 1 to 21,021,040,000 would take you about one thousand, three hundred thirty-six 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 21021040000 cubic inches would be around 230 feet tall.

Recreational maths with 21021040000

• 21021040000 backwards is 00004012012
• 21021040000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21021040000's digits is 10
• More coming soon!