138951783490

Names of 138951783490

• Cardinal: 138951783490 can be written as One hundred thirty-eight billion, nine hundred fifty-one million, seven hundred eighty-three thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.3895178349 × 10¹¹

Factors of 138951783490

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 14888

Divisors of 138951783490

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 10 13 26 29 41 58 61 65 82 122 130 145 205 290 305 377 410 533 610 754 793 1066 1189 1586 1769 1885 2378 2501 2665 3538 3770 3965 5002 5330 5945 7930 8845 11890 12505 14737 15457 17690 22997 25010 29474 30914 32513 45994 65026 72529 73685 77285 114985 145058 147370 154570 162565 191581 229970 325130 362645 383162 427373 604217 725290 854746 898957 942877 957905 1208434 1797914 1885754 1915810 2136865 3021085 4273730 4494785 4714385 5555849 6042170 7854821 8989570 9428770 11111698 11686441 15709642 17522293 23372882 26069753 27779245 35044586 36857237 39274105 52139506 55558490 58432205 73714474 78548210 87611465 116864410 130348765 175222930 184286185 227789809 260697530 338906789 368572370 455579618 479144081 677813578 958288162 1068859873 1138949045 1694533945 2137719746 2277898090 2395720405 3389067890 4791440810 5344299365 10688598730 13895178349 27790356698 69475891745 138951783490
• Sum of all divisors σ(n): 290135805120
• Sum of proper divisors (its aliquot sum) s(n): 151184021630
• 138951783490 is an abundant number, because the sum of its proper divisors (151184021630) is greater than itself. Its abundance is 12232238140

Bases of 138951783490

• Binary: 10000001011010001010111111010001000010₂
• Hexadecimal: 0x205A2BF442
• Base-36: 1RU0AYBM

Squares and roots of 138951783490

• 138951783490 squared (138951783490²) is 19307598135051836580100
• 138951783490 cubed (138951783490³) is 2682825195773650576404917242549000
• The square root of 138951783490 is 372762.3686613229
• The cube root of 138951783490 is 5179.5024378849

Scales and comparisons

• 138,951,783,490 seconds is equal to 4,418 years, 12 weeks, 2 days, 5 hours, 38 minutes, 10 seconds.
• To count from 1 to 138,951,783,490 would take you about eight thousand, eight hundred thirty-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 138951783490 cubic inches would be around 431.6 feet tall.

Recreational maths with 138951783490

• 138951783490 backwards is 094387159831
• 138951783490 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138951783490's digits is 58
• More coming soon!