18190720000

Names of 18190720000

• Cardinal: 18190720000 can be written as Eighteen billion, one hundred ninety million, seven hundred twenty thousand.

Scientific notation

• Scientific notation: 1.819072 × 10¹⁰

Factors of 18190720000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 711

Divisors of 18190720000

• Number of divisors d(n): 220
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 43 50 64 80 86 100 125 128 160 172 200 215 250 256 320 344 400 430 500 512 625 640 661 688 800 860 1000 1024 1075 1250 1280 1322 1376 1600 1720 2000 2150 2500 2560 2644 2752 3200 3305 3440 4000 4300 5000 5120 5288 5375 5504 6400 6610 6880 8000 8600 10000 10576 10750 11008 12800 13220 13760 16000 16525 17200 20000 21152 21500 22016 25600 26440 26875 27520 28423 32000 33050 34400 40000 42304 43000 44032 52880 53750 55040 56846 64000 66100 68800 80000 82625 84608 86000 105760 107500 110080 113692 128000 132200 137600 142115 160000 165250 169216 172000 211520 215000 220160 227384 264400 275200 284230 320000 330500 338432 344000 413125 423040 430000 454768 528800 550400 568460 640000 661000 676864 688000 710575 826250 846080 860000 909536 1057600 1100800 1136920 1322000 1376000 1421150 1652500 1692160 1720000 1819072 2115200 2273840 2644000 2752000 2842300 3305000 3384320 3440000 3552875 3638144 4230400 4547680 5288000 5504000 5684600 6610000 6880000 7105750 7276288 8460800 9095360 10576000 11369200 13220000 13760000 14211500 14552576 16921600 17764375 18190720 21152000 22738400 26440000 27520000 28423000 29105152 35528750 36381440 42304000 45476800 52880000 56846000 71057500 72762880 84608000 90953600 105760000 113692000 142115000 145525760 181907200 211520000 227384000 284230000 363814400 423040000 454768000 568460000 727628800 909536000 1136920000 1819072000 2273840000 3638144000 4547680000 9095360000 18190720000
• Sum of all divisors σ(n): 46567137496
• Sum of proper divisors (its aliquot sum) s(n): 28376417496
• 18190720000 is an abundant number, because the sum of its proper divisors (28376417496) is greater than itself. Its abundance is 10185697496

Bases of 18190720000

• Binary: 10000111100010000000101110000000000₂
• Hexadecimal: 0x43C405C00
• Base-36: 8CUA9DS

Squares and roots of 18190720000

• 18190720000 squared (18190720000²) is 330902294118400000000
• 18190720000 cubed (18190720000³) is 6019350979665461248000000000000
• The square root of 18190720000 is 134872.9772786231
• The cube root of 18190720000 is 2629.9649645707

Scales and comparisons

• 18,190,720,000 seconds is equal to 578 years, 21 weeks, 1 day, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 18,190,720,000 would take you about one thousand, one hundred fifty-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 18190720000 cubic inches would be around 219.2 feet tall.

Recreational maths with 18190720000

• 18190720000 backwards is 00002709181
• The number of decimal digits it has is: 11
• The sum of 18190720000's digits is 28
• More coming soon!