138451162440

Names of 138451162440

• Cardinal: 138451162440 can be written as One hundred thirty-eight billion, four hundred fifty-one million, one hundred sixty-two thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.3845116244 × 10¹¹

Factors of 138451162440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10063

Divisors of 138451162440

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 79 120 158 237 316 395 474 632 790 948 1185 1580 1783 1896 2370 3160 3566 4740 5349 7132 8191 8915 9480 10698 14264 16382 17830 21396 24573 26745 32764 35660 40955 42792 49146 53490 65528 71320 81910 98292 106980 122865 140857 163820 196584 213960 245730 281714 327640 422571 491460 563428 647089 704285 845142 982920 1126856 1294178 1408570 1690284 1941267 2112855 2588356 2817140 3235445 3380568 3882534 4225710 5176712 5634280 6470890 7765068 8451420 9706335 12941780 14604553 15530136 16902840 19412670 25883560 29209106 38825340 43813659 58418212 73022765 77650680 87627318 116836424 146045530 175254636 219068295 292091060 350509272 438136590 584182120 876273180 1153759687 1752546360 2307519374 3461279061 4615038748 5768798435 6922558122 9230077496 11537596870 13845116244 17306395305 23075193740 27690232488 34612790610 46150387480 69225581220 138451162440
• Sum of all divisors σ(n): 420898406400
• Sum of proper divisors (its aliquot sum) s(n): 282447243960
• 138451162440 is an abundant number, because the sum of its proper divisors (282447243960) is greater than itself. Its abundance is 143996081520

Bases of 138451162440

• Binary: 10000000111100010101010001010101001000₂
• Hexadecimal: 0x203C551548
• Base-36: 1RLQ8WNC

Squares and roots of 138451162440

• 138451162440 squared (138451162440²) is 19168724380987266753600
• 138451162440 cubed (138451162440³) is 2653932173039656516874285054784000
• The square root of 138451162440 is 372090.2611464051
• The cube root of 138451162440 is 5173.2746463735

Scales and comparisons

• 138,451,162,440 seconds is equal to 4,402 years, 16 weeks, 4 days, 14 minutes.
• To count from 1 to 138,451,162,440 would take you about eight thousand, eight hundred four 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 138451162440 cubic inches would be around 431.1 feet tall.

Recreational maths with 138451162440

• 138451162440 backwards is 044261154831
• The number of decimal digits it has is: 12
• The sum of 138451162440's digits is 39
• More coming soon!