138915481200

Names of 138915481200

• Cardinal: 138915481200 can be written as One hundred thirty-eight billion, nine hundred fifteen million, four hundred eighty-one thousand, two hundred.

Scientific notation

• Scientific notation: 1.389154812 × 10¹¹

Factors of 138915481200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 21760

Divisors of 138915481200

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 9293 12457 18586 24914 27879 37172 37371 46465 49828 55758 62285 74344 74742 92930 99656 111516 124570 139395 148688 149484 185860 186855 199312 223032 232325 249140 278790 298968 311425 371720 373710 446064 464650 498280 557580 597936 622850 696975 743440 747420 929300 934275 996560 1115160 1245700 1393950 1494840 1858600 1868550 2230320 2491400 2787900 2989680 3717200 3737100 4982800 5575800 7474200 11151600 14948400 115762901 231525802 347288703 463051604 578814505 694577406 926103208 1157629010 1389154812 1736443515 1852206416 2315258020 2778309624 2894072525 3472887030 4630516040 5556619248 5788145050 6945774060 8682217575 9261032080 11576290100 13891548120 17364435150 23152580200 27783096240 34728870300 46305160400 69457740600 138915481200
• Sum of all divisors σ(n): 445076202288
• Sum of proper divisors (its aliquot sum) s(n): 306160721088
• 138915481200 is an abundant number, because the sum of its proper divisors (306160721088) is greater than itself. Its abundance is 167245239888

Bases of 138915481200

• Binary: 10000001011000000000100000011001110000₂
• Hexadecimal: 0x2058020670
• Base-36: 1RTEOVAO

Squares and roots of 138915481200

• 138915481200 squared (138915481200²) is 19297510917027553440000
• 138915481200 cubed (138915481200³) is 2680723015001135859776315328000000
• The square root of 138915481200 is 372713.6718715857
• The cube root of 138915481200 is 5179.0513361387

Scales and comparisons

• 138,915,481,200 seconds is equal to 4,417 years, 4 weeks, 2 days, 1 hour, 40 minutes.
• To count from 1 to 138,915,481,200 would take you about eight thousand, eight hundred thirty-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 138915481200 cubic inches would be around 431.6 feet tall.

Recreational maths with 138915481200

• 138915481200 backwards is 002184519831
• The number of decimal digits it has is: 12
• The sum of 138915481200's digits is 42
• More coming soon!