21461790240

Names of 21461790240

• Cardinal: 21461790240 can be written as Twenty-one billion, four hundred sixty-one million, seven hundred ninety thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.146179024 × 10¹⁰

Factors of 21461790240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 451658

Divisors of 21461790240

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 66 72 80 88 90 96 99 108 110 120 132 135 144 160 165 176 180 198 216 220 240 264 270 288 297 330 352 360 396 432 440 480 495 528 540 594 660 720 792 864 880 990 1056 1080 1188 1320 1440 1485 1584 1760 1980 2160 2376 2640 2970 3168 3960 4320 4752 5280 5940 7920 9504 11880 15840 23760 47520 451637 903274 1354911 1806548 2258185 2709822 3613096 4064733 4516370 4968007 5419644 6774555 7226192 8129466 9032740 9936014 10839288 12194199 13549110 14452384 14904021 16258932 18065480 19872028 20323665 21678576 24388398 24840035 27098220 29808042 32517864 36130960 39744056 40647330 43357152 44712063 48776796 49680070 54196440 59616084 60970995 65035728 72261920 74520105 79488112 81294660 89424126 97553592 99360140 108392880 119232168 121941990 130071456 134136189 149040210 158976224 162589320 178848252 195107184 198720280 216785760 223560315 238464336 243883980 268272378 298080420 325178640 357696504 390214368 397440560 447120630 476928672 487767960 536544756 596160840 650357280 670680945 715393008 794881120 894241260 975535920 1073089512 1192321680 1341361890 1430786016 1788482520 1951071840 2146179024 2384643360 2682723780 3576965040 4292358048 5365447560 7153930080 10730895120 21461790240
• Sum of all divisors σ(n): 81945198720
• Sum of proper divisors (its aliquot sum) s(n): 60483408480
• 21461790240 is an abundant number, because the sum of its proper divisors (60483408480) is greater than itself. Its abundance is 39021618240

Bases of 21461790240

• Binary: 10011111111001110001110111000100000₂
• Hexadecimal: 0x4FF38EE20
• Base-36: 9UXSNC0

Squares and roots of 21461790240

• 21461790240 squared (21461790240²) is 460608440305759257600
• 21461790240 cubed (21461790240³) is 9885481728615766650549325824000
• The square root of 21461790240 is 146498.4308448387
• The cube root of 21461790240 is 2779.0006517893

Scales and comparisons

• 21,461,790,240 seconds is equal to 682 years, 21 weeks, 5 days, 8 hours, 24 minutes.
• To count from 1 to 21,461,790,240 would take you about one thousand, three hundred sixty-four 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 21461790240 cubic inches would be around 231.6 feet tall.

Recreational maths with 21461790240

• 21461790240 backwards is 04209716412
• 21461790240 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21461790240's digits is 36
• More coming soon!