19943450720

Names of 19943450720

• Cardinal: 19943450720 can be written as Nineteen billion, nine hundred forty-three million, four hundred fifty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.994345072 × 10¹⁰

Factors of 19943450720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 13968

Divisors of 19943450720

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 31 32 34 40 62 68 80 85 124 136 155 160 170 248 272 289 310 340 496 527 544 578 620 680 992 1054 1156 1240 1360 1445 2108 2312 2480 2635 2720 2890 4216 4624 4960 5270 5780 8432 8959 9248 10540 11560 13913 16864 17918 21080 23120 27826 35836 42160 44795 46240 55652 69565 71672 84320 89590 111304 139130 143344 179180 222608 236521 278260 286688 358360 431303 445216 473042 556520 716720 862606 946084 1113040 1182605 1433440 1725212 1892168 2156515 2226080 2365210 3450424 3784336 4020857 4313030 4730420 6900848 7332151 7568672 8041714 8626060 9460840 13801696 14664302 16083428 17252120 18921680 20104285 29328604 32166856 34504240 36660755 37843360 40208570 58657208 64333712 69008480 73321510 80417140 117314416 124646567 128667424 146643020 160834280 234628832 249293134 293286040 321668560 498586268 586572080 623232835 643337120 997172536 1173144160 1246465670 1994345072 2492931340 3988690144 4985862680 9971725360 19943450720
• Sum of all divisors σ(n): 51669249408
• Sum of proper divisors (its aliquot sum) s(n): 31725798688
• 19943450720 is an abundant number, because the sum of its proper divisors (31725798688) is greater than itself. Its abundance is 11782347968

Bases of 19943450720

• Binary: 10010100100101110001110100001100000₂
• Hexadecimal: 0x4A4B8E860
• Base-36: 95TTD28

Squares and roots of 19943450720

• 19943450720 squared (19943450720²) is 397741226621068518400
• 19943450720 cubed (19943450720³) is 7932332552429632110453813248000
• The square root of 19943450720 is 141221.2828153037
• The cube root of 19943450720 is 2711.8568955969

Scales and comparisons

• 19,943,450,720 seconds is equal to 634 years, 7 weeks, 1 day, 23 hours, 25 minutes, 20 seconds.
• To count from 1 to 19,943,450,720 would take you about one thousand, two hundred sixty-eight 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 19943450720 cubic inches would be around 226 feet tall.

Recreational maths with 19943450720

• 19943450720 backwards is 02705434991
• The number of decimal digits it has is: 11
• The sum of 19943450720's digits is 44
• More coming soon!