20817278040

Names of 20817278040

• Cardinal: 20817278040 can be written as Twenty billion, eight hundred seventeen million, two hundred seventy-eight thousand and forty.

Scientific notation

• Scientific notation: 2.081727804 × 10¹⁰

Factors of 20817278040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 304

Divisors of 20817278040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 169 195 260 281 312 338 390 507 520 562 676 780 843 845 1014 1124 1352 1405 1560 1686 1690 2028 2197 2248 2535 2810 3372 3380 3653 4056 4215 4394 5070 5620 6591 6744 6760 7306 8430 8788 10140 10959 10985 11240 13182 14612 16860 17576 18265 20280 21918 21970 26364 29224 32955 33720 36530 43836 43940 47489 52728 54795 65910 73060 78961 87672 87880 94978 109590 131820 142467 146120 157922 189956 219180 236883 237445 263640 284934 315844 379912 394805 438360 473766 474890 569868 617357 631688 712335 789610 947532 949780 1026493 1139736 1184415 1234714 1424670 1579220 1852071 1895064 1899560 2052986 2368830 2469428 2849340 3079479 3086785 3158440 3704142 4105972 4737660 4938856 5132465 5698680 6158958 6173570 7408284 8211944 9260355 9475320 10264930 12317916 12347140 13344409 14816568 15397395 18520710 20529860 24635832 24694280 26688818 30794790 37041420 40033227 41059720 53377636 61589580 66722045 74082840 80066454 106755272 123179160 133444090 160132908 173477317 200166135 266888180 320265816 346954634 400332270 520431951 533776360 693909268 800664540 867386585 1040863902 1387818536 1601329080 1734773170 2081727804 2602159755 3469546340 4163455608 5204319510 6939092680 10408639020 20817278040
• Sum of all divisors σ(n): 67895402400
• Sum of proper divisors (its aliquot sum) s(n): 47078124360
• 20817278040 is an abundant number, because the sum of its proper divisors (47078124360) is greater than itself. Its abundance is 26260846320

Bases of 20817278040

• Binary: 10011011000110011100111010001011000₂
• Hexadecimal: 0x4D8CE7458
• Base-36: 9KA2IJC

Squares and roots of 20817278040

• 20817278040 squared (20817278040²) is 433359064994666241600
• 20817278040 cubed (20817278040³) is 9021356147148398268389014464000
• The square root of 20817278040 is 144281.9394103087
• The cube root of 20817278040 is 2750.8990136159

Scales and comparisons

• 20,817,278,040 seconds is equal to 661 years, 48 weeks, 17 hours, 14 minutes.
• To count from 1 to 20,817,278,040 would take you about one thousand, three hundred twenty-three 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 20817278040 cubic inches would be around 229.2 feet tall.

Recreational maths with 20817278040

• 20817278040 backwards is 04087271802
• 20817278040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20817278040's digits is 39
• More coming soon!