19901800040

Names of 19901800040

• Cardinal: 19901800040 can be written as Nineteen billion, nine hundred one million, eight hundred thousand and forty.

Scientific notation

• Scientific notation: 1.990180004 × 10¹⁰

Factors of 19901800040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 294

Divisors of 19901800040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 17 19 20 34 38 40 68 76 85 95 136 152 170 190 251 289 323 340 361 380 502 578 646 680 722 760 1004 1156 1255 1292 1444 1445 1615 1805 2008 2312 2510 2584 2888 2890 3230 3610 4267 4769 5020 5491 5780 6137 6460 6859 7220 8534 9538 10040 10982 11560 12274 12920 13718 14440 17068 19076 21335 21964 23845 24548 27436 27455 30685 34136 34295 38152 42670 43928 47690 49096 54872 54910 61370 68590 72539 81073 85340 90611 95380 104329 109820 116603 122740 137180 145078 162146 170680 181222 190760 208658 219640 233206 245480 274360 290156 324292 362444 362695 405365 417316 453055 466412 521645 580312 583015 648584 724888 725390 810730 834632 906110 932824 1043290 1166030 1378241 1450780 1540387 1621460 1721609 1812220 1982251 2086580 2332060 2756482 2901560 3080774 3242920 3443218 3624440 3964502 4173160 4664120 5512964 6161548 6886436 6891205 7701935 7929004 8608045 9911255 11025928 12323096 13772872 13782410 15403870 15858008 17216090 19822510 26186579 27564820 29267353 30807740 34432180 39645020 52373158 55129640 58534706 61615480 68864360 79290040 104746316 117069412 130932895 146336765 209492632 234138824 261865790 292673530 497545001 523731580 585347060 995090002 1047463160 1170694120 1990180004 2487725005 3980360008 4975450010 9950900020 19901800040
• Sum of all divisors σ(n): 50410382400
• Sum of proper divisors (its aliquot sum) s(n): 30508582360
• 19901800040 is an abundant number, because the sum of its proper divisors (30508582360) is greater than itself. Its abundance is 10606782320

Bases of 19901800040

• Binary: 10010100010001111010101111001101000₂
• Hexadecimal: 0x4A23D5E68
• Base-36: 9550N6W

Squares and roots of 19901800040

• 19901800040 squared (19901800040²) is 396081644832144001600
• 19901800040 cubed (19901800040³) is 7882737694963629284328640064000
• The square root of 19901800040 is 141073.7397250105
• The cube root of 19901800040 is 2709.9677306289

Scales and comparisons

• 19,901,800,040 seconds is equal to 632 years, 42 weeks, 2 days, 21 hours, 47 minutes, 20 seconds.
• To count from 1 to 19,901,800,040 would take you about one thousand, two hundred sixty-five 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 19901800040 cubic inches would be around 225.8 feet tall.

Recreational maths with 19901800040

• 19901800040 backwards is 04000810991
• The number of decimal digits it has is: 11
• The sum of 19901800040's digits is 32
• More coming soon!