18210230640

Names of 18210230640

• Cardinal: 18210230640 can be written as Eighteen billion, two hundred ten million, two hundred thirty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.821023064 × 10¹⁰

Factors of 18210230640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 516180

Divisors of 18210230640

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 42 45 48 49 56 60 63 70 72 80 84 90 98 105 112 120 126 140 144 147 168 180 196 210 240 245 252 280 294 315 336 360 392 420 441 490 504 560 588 630 720 735 784 840 882 980 1008 1176 1260 1470 1680 1764 1960 2205 2352 2520 2940 3528 3920 4410 5040 5880 7056 8820 11760 17640 35280 516163 1032326 1548489 2064652 2580815 3096978 3613141 4129304 4645467 5161630 6193956 7226282 7742445 8258608 9290934 10323260 10839423 12387912 14452564 15484890 18065705 18581868 20646520 21678846 23227335 24775824 25291987 28905128 30969780 32518269 36131410 37163736 41293040 43357692 46454670 50583974 54197115 57810256 61939560 65036538 72262820 74327472 75875961 86715384 92909340 101167948 108394230 123879120 126459935 130073076 144525640 151751922 162591345 173430768 185818680 202335896 216788460 227627883 252919870 260146152 289051280 303503844 325182690 371637360 379379805 404671792 433576920 455255766 505839740 520292304 607007688 650365380 758759610 867153840 910511532 1011679480 1138139415 1214015376 1300730760 1517519220 1821023064 2023358960 2276278830 2601461520 3035038440 3642046128 4552557660 6070076880 9105115320 18210230640
• Sum of all divisors σ(n): 71140819464
• Sum of proper divisors (its aliquot sum) s(n): 52930588824
• 18210230640 is an abundant number, because the sum of its proper divisors (52930588824) is greater than itself. Its abundance is 34720358184

Bases of 18210230640

• Binary: 10000111101011010100001000101110000₂
• Hexadecimal: 0x43D6A1170
• Base-36: 8D5WFW0

Squares and roots of 18210230640

• 18210230640 squared (18210230640²) is 331612499961994809600
• 18210230640 cubed (18210230640³) is 6038740107414916717298886144000
• The square root of 18210230640 is 134945.2875798189
• The cube root of 18210230640 is 2630.9048937467

Scales and comparisons

• 18,210,230,640 seconds is equal to 579 years, 1 week, 3 days, 13 hours, 24 minutes.
• To count from 1 to 18,210,230,640 would take you about one thousand, one hundred fifty-eight 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 18210230640 cubic inches would be around 219.2 feet tall.

Recreational maths with 18210230640

• 18210230640 backwards is 04603201281
• The number of decimal digits it has is: 11
• The sum of 18210230640's digits is 27
• More coming soon!