18936494920

Names of 18936494920

• Cardinal: 18936494920 can be written as Eighteen billion, nine hundred thirty-six million, four hundred ninety-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.893649492 × 10¹⁰

Factors of 18936494920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 124

Divisors of 18936494920

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 35 37 40 49 56 70 73 74 98 140 146 148 185 196 245 259 280 292 296 343 365 370 392 490 511 518 584 686 730 740 980 1022 1036 1295 1372 1460 1480 1715 1813 1960 2044 2072 2401 2555 2590 2701 2744 2920 3430 3577 3626 4088 4802 5110 5180 5329 5402 6860 7154 7252 9065 9604 10220 10360 10658 10804 12005 12691 13505 13720 14308 14504 17885 18130 18907 19208 20440 21316 21608 24010 25039 25382 26645 27010 28616 35770 36260 37303 37814 42632 48020 50078 50764 53290 54020 63455 71540 72520 74606 75628 88837 94535 96040 100156 101528 106580 108040 125195 126910 132349 143080 149212 151256 175273 177674 186515 189070 197173 200312 213160 250390 253820 261121 264698 298424 350546 355348 373030 378140 394346 444185 500780 507640 522242 529396 661745 701092 710696 746060 756280 788692 876365 888370 926443 985865 1001560 1044484 1058792 1305605 1323490 1380211 1402184 1492120 1577384 1752730 1776740 1827847 1852886 1971730 2088968 2611210 2646980 2760422 3505460 3553480 3655694 3705772 3943460 4632215 5222420 5293960 5520844 6485101 6901055 7010920 7311388 7411544 7886920 9139235 9264430 9661477 10444840 11041688 12794929 12970202 13802110 14622776 18278470 18528860 19322954 25589858 25940404 27604220 32425505 36556940 37057720 38645908 48307385 51179716 51880808 55208440 63974645 64851010 67630339 73113880 77291816 96614770 102359432 127949290 129702020 135260678 193229540 255898580 259404040 270521356 338151695 386459080 473412373 511797160 541042712 676303390 946824746 1352606780 1893649492 2367061865 2705213560 3787298984 4734123730 9468247460 18936494920
• Sum of all divisors σ(n): 51757606260
• Sum of proper divisors (its aliquot sum) s(n): 32821111340
• 18936494920 is an abundant number, because the sum of its proper divisors (32821111340) is greater than itself. Its abundance is 13884616420

Bases of 18936494920

• Binary: 10001101000101100111111101101001000₂
• Hexadecimal: 0x468B3FB48
• Base-36: 8P6ASZS

Squares and roots of 18936494920

• 18936494920 squared (18936494920²) is 358590839855185806400
• 18936494920 cubed (18936494920³) is 6790453617276259558549703488000
• The square root of 18936494920 is 137609.9375771969
• The cube root of 18936494920 is 2665.4253994635

Scales and comparisons

• 18,936,494,920 seconds is equal to 602 years, 6 weeks, 2 days, 9 hours, 28 minutes, 40 seconds.
• To count from 1 to 18,936,494,920 would take you about one thousand, two hundred four 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 18936494920 cubic inches would be around 222.1 feet tall.

Recreational maths with 18936494920

• 18936494920 backwards is 02949463981
• The number of decimal digits it has is: 11
• The sum of 18936494920's digits is 55
• More coming soon!