138521100

Names of 138521100

• Cardinal: 138521100 can be written as One hundred thirty-eight million, five hundred twenty-one thousand, one hundred.

Scientific notation

• Scientific notation: 1.385211 × 10⁸

Factors of 138521100

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 357

Divisors of 138521100

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 17 20 25 30 34 50 51 60 68 75 85 100 102 150 157 170 173 204 255 300 314 340 346 425 471 510 519 628 692 785 850 865 942 1020 1038 1275 1570 1700 1730 1884 2076 2355 2550 2595 2669 2941 3140 3460 3925 4325 4710 5100 5190 5338 5882 7850 8007 8650 8823 9420 10380 10676 11764 11775 12975 13345 14705 15700 16014 17300 17646 23550 25950 26690 27161 29410 32028 35292 40035 44115 47100 51900 53380 54322 58820 66725 73525 80070 81483 88230 108644 133450 135805 147050 160140 162966 176460 200175 220575 266900 271610 294100 325932 400350 407415 441150 461737 543220 679025 800700 814830 882300 923474 1358050 1385211 1629660 1846948 2037075 2308685 2716100 2770422 4074150 4617370 5540844 6926055 8148300 9234740 11543425 13852110 23086850 27704220 34630275 46173700 69260550 138521100
• Sum of all divisors σ(n): 429535008
• Sum of proper divisors (its aliquot sum) s(n): 291013908
• 138521100 is an abundant number, because the sum of its proper divisors (291013908) is greater than itself. Its abundance is 152492808

Bases of 138521100

• Binary: 1000010000011010101000001100₂
• Hexadecimal: 0x841AA0C
• Base-36: 2AGZKC

Squares and roots of 138521100

• 138521100 squared (138521100²) is 19188095145210000
• 138521100 cubed (138521100³) is 2657956046419148931000000
• The square root of 138521100 is 11769.4987148987
• The cube root of 138521100 is 517.4145579959

Scales and comparisons

• 138,521,100 seconds is equal to 4 years, 21 weeks, 6 hours, 5 minutes.
• To count from 1 to 138,521,100 would take you about 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 138521100 cubic inches would be around 43.1 feet tall.

Recreational maths with 138521100

• 138521100 backwards is 001125831
• The number of decimal digits it has is: 9
• The sum of 138521100's digits is 21
• More coming soon!