138994989408

Names of 138994989408

• Cardinal: 138994989408 can be written as One hundred thirty-eight billion, nine hundred ninety-four million, nine hundred eighty-nine thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.38994989408 × 10¹¹

Factors of 138994989408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 50698

Divisors of 138994989408

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 96 99 132 144 176 198 264 288 352 396 528 792 881 1056 1584 1762 2643 3168 3524 5286 7048 7929 9691 10572 14096 15858 19382 21144 28192 29073 31716 38764 42288 49801 58146 63432 77528 84576 87219 99602 116292 126864 149403 155056 174438 199204 232584 253728 298806 310112 348876 398408 448209 465168 547811 597612 697752 796816 896418 930336 1095622 1195224 1395504 1593632 1643433 1792836 2191244 2390448 2791008 3286866 3585672 4382488 4780896 4930299 6573732 7171344 8764976 9860598 13147464 14342688 17529952 19721196 26294928 39442392 43874681 52589856 78884784 87749362 131624043 157769568 175498724 263248086 350997448 394872129 482621491 526496172 701994896 789744258 965242982 1052992344 1403989792 1447864473 1579488516 1930485964 2105984688 2895728946 3158977032 3860971928 4211969376 4343593419 5791457892 6317954064 7721943856 8687186838 11582915784 12635908128 15443887712 17374373676 23165831568 34748747352 46331663136 69497494704 138994989408
• Sum of all divisors σ(n): 431698477392
• Sum of proper divisors (its aliquot sum) s(n): 292703487984
• 138994989408 is an abundant number, because the sum of its proper divisors (292703487984) is greater than itself. Its abundance is 153708498576

Bases of 138994989408

• Binary: 10000001011100101111110011100101100000₂
• Hexadecimal: 0x205CBF3960
• Base-36: 1RUQ1080

Squares and roots of 138994989408

• 138994989408 squared (138994989408²) is 19319607080530032190464
• 138994989408 cubed (138994989408³) is 2685328581524993627339442718605312
• The square root of 138994989408 is 372820.3178583485
• The cube root of 138994989408 is 5180.0392235269

Scales and comparisons

• 138,994,989,408 seconds is equal to 4,419 years, 31 weeks, 5 days, 7 hours, 16 minutes, 48 seconds.
• To count from 1 to 138,994,989,408 would take you about eight thousand, eight hundred thirty-nine 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 138994989408 cubic inches would be around 431.7 feet tall.

Recreational maths with 138994989408

• 138994989408 backwards is 804989499831
• 138994989408 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138994989408's digits is 72
• More coming soon!