18028720500

Names of 18028720500

• Cardinal: 18028720500 can be written as Eighteen billion, twenty-eight million, seven hundred twenty thousand, five hundred.

Scientific notation

• Scientific notation: 1.80287205 × 10¹⁰

Factors of 18028720500

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 388

Divisors of 18028720500

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 83 84 100 105 125 137 140 150 151 166 175 210 249 250 274 300 302 332 350 375 411 415 420 453 498 500 525 548 581 604 685 700 750 755 822 830 875 906 959 996 1050 1057 1162 1245 1370 1500 1510 1644 1660 1743 1750 1812 1918 2055 2075 2100 2114 2265 2324 2490 2625 2740 2877 2905 3020 3171 3425 3486 3500 3775 3836 4110 4150 4228 4530 4795 4980 5250 5285 5754 5810 6225 6342 6850 6972 7550 8220 8300 8715 9060 9590 10275 10375 10500 10570 11325 11371 11508 11620 12450 12533 12684 13700 14385 14525 15100 15855 17125 17430 18875 19180 20550 20687 20750 21140 22650 22742 23975 24900 25066 26425 28770 29050 31125 31710 34113 34250 34860 37599 37750 41100 41374 41500 43575 45300 45484 47950 50132 51375 52850 56625 56855 57540 58100 62061 62250 62665 63420 68226 68500 71925 72625 75198 75500 79275 79597 82748 87150 87731 95900 102750 103435 105700 113250 113710 119875 124122 124500 125330 132125 136452 143850 144809 145250 150396 158550 159194 170565 174300 175462 187995 205500 206870 217875 226500 227420 238791 239750 248244 250660 263193 264250 284275 287700 289618 290500 310305 313325 317100 318388 341130 350924 359625 375990 396375 397985 413740 434427 435750 438655 477582 479500 517175 526386 528500 568550 579236 620610 626650 682260 719250 724045 751980 792750 795970 852825 868854 871500 877310 939975 955164 1034350 1052772 1137100 1193955 1241220 1253300 1315965 1421375 1438500 1448090 1551525 1566625 1585500 1591940 1705650 1717021 1737708 1754620 1879950 1989925 2068700 2172135 2193275 2387910 2585875 2631930 2842750 2896180 3103050 3133250 3411300 3434042 3620225 3759900 3979850 4264125 4344270 4386550 4699875 4775820 5151063 5171750 5263860 5685500 5969775 6206100 6266500 6579825 6868084 7240450 7757625 7959700 8528250 8585105 8688540 8773100 9399750 9949625 10302126 10343500 10860675 10966375 11939550 12019147 13159650 14480900 15515250 17056500 17170210 18101125 18799500 19899250 20604252 21721350 21932750 23879100 24038294 25755315 26319300 29848875 31030500 32899125 34340420 36057441 36202250 39798500 42925525 43442700 43865500 48076588 51510630 54303375 59697750 60095735 65798250 72114882 72404500 85851050 103021260 108606750 119395500 120191470 128776575 131596500 144229764 171702100 180287205 214627625 217213500 240382940 257553150 300478675 360574410 429255250 515106300 600957350 643882875 721148820 858510500 901436025 1201914700 1287765750 1502393375 1802872050 2575531500 3004786750 3605744100 4507180125 6009573500 9014360250 18028720500
• Sum of all divisors σ(n): 61570768896
• Sum of proper divisors (its aliquot sum) s(n): 43542048396
• 18028720500 is an abundant number, because the sum of its proper divisors (43542048396) is greater than itself. Its abundance is 25513327896

Bases of 18028720500

• Binary: 10000110010100110000111000101110100₂
• Hexadecimal: 0x432987174
• Base-36: 8A5U1RO

Squares and roots of 18028720500

• 18028720500 squared (18028720500²) is 325034762867120250000
• 18028720500 cubed (18028720500³) is 5859960892515089627140125000000
• The square root of 18028720500 is 134271.0709721197
• The cube root of 18028720500 is 2622.1345239497

Scales and comparisons

• 18,028,720,500 seconds is equal to 573 years, 13 weeks, 2 days, 17 hours, 55 minutes.
• To count from 1 to 18,028,720,500 would take you about one thousand, one hundred forty-six 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 18028720500 cubic inches would be around 218.5 feet tall.

Recreational maths with 18028720500

• 18028720500 backwards is 00502782081
• The number of decimal digits it has is: 11
• The sum of 18028720500's digits is 33
• More coming soon!