139273728

Names of 139273728

• Cardinal: 139273728 can be written as One hundred thirty-nine million, two hundred seventy-three thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.39273728 × 10⁸

Factors of 139273728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 8259

Divisors of 139273728

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1056 1408 1536 2112 2816 4224 5632 8243 8448 16486 16896 24729 32972 49458 65944 90673 98916 131888 181346 197832 263776 272019 362692 395664 527552 544038 725384 791328 1055104 1088076 1450768 1582656 2110208 2176152 2901536 3165312 4220416 4352304 5803072 6330624 8704608 11606144 12661248 17409216 23212288 34818432 46424576 69636864 139273728
• Sum of all divisors σ(n): 404813376
• Sum of proper divisors (its aliquot sum) s(n): 265539648
• 139273728 is an abundant number, because the sum of its proper divisors (265539648) is greater than itself. Its abundance is 126265920

Bases of 139273728

• Binary: 1000010011010010011000000000₂
• Hexadecimal: 0x84D2600
• Base-36: 2AX4AO

Squares and roots of 139273728

• 139273728 squared (139273728²) is 19397171311017984
• 139273728 cubed (139273728³) is 2701516361140122106724352
• The square root of 139273728 is 11801.4290660073
• The cube root of 139273728 is 518.3499570653

Scales and comparisons

• 139,273,728 seconds is equal to 4 years, 22 weeks, 1 day, 23 hours, 8 minutes, 48 seconds.
• To count from 1 to 139,273,728 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 139273728 cubic inches would be around 43.2 feet tall.

Recreational maths with 139273728

• 139273728 backwards is 827372931
• The number of decimal digits it has is: 9
• The sum of 139273728's digits is 42
• More coming soon!