138383651840

Names of 138383651840

• Cardinal: 138383651840 can be written as One hundred thirty-eight billion, three hundred eighty-three million, six hundred fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3838365184 × 10¹¹

Factors of 138383651840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 11271

Divisors of 138383651840

• Number of divisors d(n): 220
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 256 280 320 343 392 448 490 512 560 640 686 784 896 980 1024 1120 1280 1372 1568 1715 1792 1960 2240 2401 2560 2744 3136 3430 3584 3920 4480 4802 5120 5488 6272 6860 7168 7840 8960 9604 10976 11257 12005 12544 13720 15680 17920 19208 21952 22514 24010 25088 27440 31360 35840 38416 43904 45028 48020 50176 54880 56285 62720 76832 78799 87808 90056 96040 109760 112570 125440 153664 157598 175616 180112 192080 219520 225140 250880 307328 315196 351232 360224 384160 393995 439040 450280 551593 614656 630392 720448 768320 787990 878080 900560 1103186 1229312 1260784 1440896 1536640 1575980 1756160 1801120 2206372 2458624 2521568 2757965 2881792 3073280 3151960 3602240 3861151 4412744 5043136 5515930 5763584 6146560 6303920 7204480 7722302 8825488 10086272 11031860 11527168 12293120 12607840 14408960 15444604 17650976 19305755 20172544 22063720 25215680 27028057 28817920 30889208 35301952 38611510 40345088 44127440 50431360 54056114 57635840 61778416 70603904 77223020 80690176 88254880 100862720 108112228 123556832 135140285 141207808 154446040 176509760 201725440 216224456 247113664 270280570 282415616 308892080 353019520 403450880 432448912 494227328 540561140 564831232 617784160 706039040 864897824 988454656 1081122280 1235568320 1412078080 1729795648 1976909312 2162244560 2471136640 2824156160 3459591296 3953818624 4324489120 4942273280 6919182592 8648978240 9884546560 13838365184 17297956480 19769093120 27676730368 34595912960 69191825920 138383651840
• Sum of all divisors σ(n): 387296387556
• Sum of proper divisors (its aliquot sum) s(n): 248912735716
• 138383651840 is an abundant number, because the sum of its proper divisors (248912735716) is greater than itself. Its abundance is 110529083876

Bases of 138383651840

• Binary: 10000000111000010011101111010000000000₂
• Hexadecimal: 0x20384EF400
• Base-36: 1RKM1X4W

Squares and roots of 138383651840

• 138383651840 squared (138383651840²) is 19150035096574335385600
• 138383651840 cubed (138383651840³) is 2650051789528123604680262549504000
• The square root of 138383651840 is 371999.5320427165
• The cube root of 138383651840 is 5172.4336575103

Scales and comparisons

• 138,383,651,840 seconds is equal to 4,400 years, 8 weeks, 6 days, 15 hours, 17 minutes, 20 seconds.
• To count from 1 to 138,383,651,840 would take you about eight thousand, eight hundred 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 138383651840 cubic inches would be around 431 feet tall.

Recreational maths with 138383651840

• 138383651840 backwards is 048156383831
• The number of decimal digits it has is: 12
• The sum of 138383651840's digits is 50
• More coming soon!