138780642500

Names of 138780642500

• Cardinal: 138780642500 can be written as One hundred thirty-eight billion, seven hundred eighty million, six hundred forty-two thousand, five hundred.

Scientific notation

• Scientific notation: 1.387806425 × 10¹¹

Factors of 138780642500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3866

Divisors of 138780642500

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 10 20 25 50 61 100 122 125 244 250 257 305 500 514 610 625 1028 1220 1250 1285 1525 2500 2570 3050 3541 5140 6100 6425 7082 7625 12850 14164 15250 15677 17705 25700 30500 31354 32125 35410 38125 62708 64250 70820 76250 78385 88525 128500 152500 156770 160625 177050 216001 313540 321250 354100 391925 432002 442625 642500 783850 864004 885250 910037 1080005 1567700 1770500 1820074 1959625 2160010 2213125 3640148 3919250 4320020 4426250 4550185 5400025 7838500 8852500 9100370 9798125 10800050 18200740 19596250 21600100 22750925 27000125 39192500 45501850 54000250 55512257 91003700 108000500 111024514 113754625 135000625 222049028 227509250 270001250 277561285 455018500 540002500 555122570 568773125 1110245140 1137546250 1387806425 2275092500 2775612850 5551225700 6939032125 13878064250 27756128500 34695160625 69390321250 138780642500
• Sum of all divisors σ(n): 309748367544
• Sum of proper divisors (its aliquot sum) s(n): 170967725044
• 138780642500 is an abundant number, because the sum of its proper divisors (170967725044) is greater than itself. Its abundance is 32187082544

Bases of 138780642500

• Binary: 10000001001111111110001000110011000100₂
• Hexadecimal: 0x204FF88CC4
• Base-36: 1RR6ET38

Squares and roots of 138780642500

• 138780642500 squared (138780642500²) is 19260066732712806250000
• 138780642500 cubed (138780642500³) is 2672924435758759019353015625000000
• The square root of 138780642500 is 372532.7401719209
• The cube root of 138780642500 is 5177.3751067923

Scales and comparisons

• 138,780,642,500 seconds is equal to 4,412 years, 41 weeks, 2 days, 10 hours, 28 minutes, 20 seconds.
• To count from 1 to 138,780,642,500 would take you about eight thousand, eight hundred twenty-five 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 138780642500 cubic inches would be around 431.4 feet tall.

Recreational maths with 138780642500

• 138780642500 backwards is 005246087831
• The number of decimal digits it has is: 12
• The sum of 138780642500's digits is 44
• More coming soon!