18205098720

Names of 18205098720

• Cardinal: 18205098720 can be written as Eighteen billion, two hundred five million, ninety-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.820509872 × 10¹⁰

Factors of 18205098720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8965

Divisors of 18205098720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 68 80 85 96 102 120 136 160 170 204 240 255 257 272 340 408 480 510 514 544 680 771 816 1020 1028 1285 1360 1542 1632 2040 2056 2570 2720 3084 3855 4080 4112 4369 5140 6168 7710 8160 8224 8681 8738 10280 12336 13107 15420 17362 17476 20560 21845 24672 26043 26214 30840 34724 34952 41120 43405 43690 52086 52428 61680 65535 69448 69904 86810 87380 104172 104856 123360 130215 131070 138896 139808 147577 173620 174760 208344 209712 260430 262140 277792 295154 347240 349520 416688 419424 442731 520860 524280 590308 694480 699040 737885 833376 885462 1041720 1048560 1180616 1388960 1475770 1770924 2083440 2097120 2213655 2231017 2361232 2951540 3541848 4166880 4427310 4462034 4722464 5903080 6693051 7083696 8854620 8924068 11155085 11806160 13386102 14167392 17709240 17848136 22310170 23612320 26772204 33465255 35418480 35696272 37927289 44620340 53544408 66930510 70836960 71392544 75854578 89240680 107088816 113781867 133861020 151709156 178481360 189636445 214177632 227563734 267722040 303418312 356962720 379272890 455127468 535444080 568909335 606836624 758545780 910254936 1070888160 1137818670 1213673248 1517091560 1820509872 2275637340 3034183120 3641019744 4551274680 6068366240 9102549360 18205098720
• Sum of all divisors σ(n): 60962642496
• Sum of proper divisors (its aliquot sum) s(n): 42757543776
• 18205098720 is an abundant number, because the sum of its proper divisors (42757543776) is greater than itself. Its abundance is 24552445056

Bases of 18205098720

• Binary: 10000111101000110111100001011100000₂
• Hexadecimal: 0x43D1BC2E0
• Base-36: 8D2UG2O

Squares and roots of 18205098720

• 18205098720 squared (18205098720²) is 331425619404945638400
• 18205098720 cubed (18205098720³) is 6033636119604183003305422848000
• The square root of 18205098720 is 134926.2714225811
• The cube root of 18205098720 is 2630.6577275205

Scales and comparisons

• 18,205,098,720 seconds is equal to 578 years, 45 weeks, 3 hours, 52 minutes.
• To count from 1 to 18,205,098,720 would take you about one thousand, one hundred fifty-seven 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 18205098720 cubic inches would be around 219.2 feet tall.

Recreational maths with 18205098720

• 18205098720 backwards is 02789050281
• The number of decimal digits it has is: 11
• The sum of 18205098720's digits is 42
• More coming soon!