21242245620

Names of 21242245620

• Cardinal: 21242245620 can be written as Twenty-one billion, two hundred forty-two million, two hundred forty-five thousand, six hundred twenty.

Scientific notation

• Scientific notation: 2.124224562 × 10¹⁰

Factors of 21242245620

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 134

Divisors of 21242245620

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 107 170 204 214 255 289 321 340 428 510 535 578 642 867 1020 1070 1156 1284 1445 1605 1734 1819 2140 2890 3210 3468 3638 4335 5457 5780 6420 7276 8670 9095 10914 11449 17340 18190 21828 22898 27285 30923 34347 36380 45796 54570 57245 61846 68694 92769 109140 114490 123692 137388 154615 171735 185538 194633 228980 309230 343470 371076 389266 463845 583899 618460 686940 778532 927690 973165 1167798 1225043 1855380 1946330 2335596 2450086 2919495 3308761 3675129 3892660 4900172 5838990 6125215 6617522 7350258 9926283 11677980 12250430 13235044 14700516 16543805 18375645 19852566 20825731 24500860 33087610 36751290 39705132 41651462 49631415 62477193 66175220 73502580 83302924 99262830 104128655 124954386 198525660 208257310 249908772 312385965 354037427 416514620 624771930 708074854 1062112281 1249543860 1416149708 1770187135 2124224562 3540374270 4248449124 5310561405 7080748540 10621122810 21242245620
• Sum of all divisors σ(n): 63778881600
• Sum of proper divisors (its aliquot sum) s(n): 42536635980
• 21242245620 is an abundant number, because the sum of its proper divisors (42536635980) is greater than itself. Its abundance is 21294390360

Bases of 21242245620

• Binary: 10011110010001000101111000111110100₂
• Hexadecimal: 0x4F222F1F4
• Base-36: 9RB31MC

Squares and roots of 21242245620

• 21242245620 squared (21242245620²) is 451232998980409184400
• 21242245620 cubed (21242245620³) is 9585202196191061463128672328000
• The square root of 21242245620 is 145747.1976402977
• The cube root of 21242245620 is 2769.4921727585

Scales and comparisons

• 21,242,245,620 seconds is equal to 675 years, 22 weeks, 5 days, 7 hours, 47 minutes.
• To count from 1 to 21,242,245,620 would take you about one thousand, three hundred fifty 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 21242245620 cubic inches would be around 230.8 feet tall.

Recreational maths with 21242245620

• 21242245620 backwards is 02654224212
• 21242245620 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21242245620's digits is 30
• More coming soon!