138681261000

Names of 138681261000

• Cardinal: 138681261000 can be written as One hundred thirty-eight billion, six hundred eighty-one million, two hundred sixty-one thousand.

Scientific notation

• Scientific notation: 1.38681261 × 10¹¹

Factors of 138681261000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 912

Divisors of 138681261000

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 79 90 100 108 120 125 135 150 158 180 200 216 225 237 250 270 300 316 360 375 395 450 474 500 540 600 632 675 711 750 790 823 900 948 1000 1080 1125 1185 1350 1422 1500 1580 1646 1800 1896 1975 2133 2250 2370 2469 2700 2844 3000 3160 3292 3375 3555 3950 4115 4266 4500 4740 4938 5400 5688 5925 6241 6584 6750 7110 7407 7900 8230 8532 9000 9480 9875 9876 10665 11850 12345 12482 13500 14220 14814 15800 16460 17064 17775 18723 19750 19752 20575 21330 22221 23700 24690 24964 27000 28440 29625 29628 31205 32920 35550 37035 37446 39500 41150 42660 44442 47400 49380 49928 53325 56169 59250 59256 61725 62410 65017 71100 74070 74892 79000 82300 85320 88875 88884 93615 98760 102875 106650 111105 112338 118500 123450 124820 130034 142200 148140 149784 156025 164600 168507 177750 177768 185175 187230 195051 205750 213300 222210 224676 237000 246900 249640 260068 266625 280845 296280 308625 312050 325085 337014 355500 370350 374460 390102 411500 426600 444420 449352 468075 493800 520136 533250 555525 561690 585153 617250 624100 650170 674028 711000 740700 748920 780125 780204 823000 842535 888840 925875 936150 975255 1066500 1111050 1123380 1170306 1234500 1248200 1300340 1348056 1404225 1481400 1560250 1560408 1625425 1685070 1755459 1851750 1872300 1950510 2133000 2222100 2246760 2340375 2340612 2469000 2600680 2777625 2808450 2925765 3120500 3250850 3370140 3510918 3703500 3744600 3901020 4212675 4444200 4680750 4681224 4876275 5136343 5555250 5616900 5851530 6241000 6501700 6740280 7021125 7021836 7407000 7802040 8127125 8425350 8777295 9361500 9752550 10272686 11110500 11233800 11703060 13003400 14042250 14043672 14628825 15409029 16254250 16850700 17554590 18723000 19505100 20545372 21063375 22221000 23406120 24381375 25681715 28084500 29257650 30818058 32508500 33701400 35109180 39010200 41090744 42126750 43886475 46227087 48762750 51363430 56169000 58515300 61636116 65017000 70218360 73144125 77045145 84253500 87772950 92454174 97525500 102726860 117030600 123272232 128408575 138681261 146288250 154090290 168507000 175545900 184908348 195051000 205453720 219432375 231135435 256817150 277362522 292576500 308180580 351091800 369816696 385225725 438864750 462270870 513634300 554725044 585153000 616361160 642042875 693406305 770451450 877729500 924541740 1027268600 1109450088 1155677175 1284085750 1386812610 1540902900 1755459000 1849083480 1926128625 2311354350 2568171500 2773625220 3081805800 3467031525 3852257250 4622708700 5136343000 5547250440 5778385875 6934063050 7704514500 9245417400 11556771750 13868126100 15409029000 17335157625 23113543500 27736252200 34670315250 46227087000 69340630500 138681261000
• Sum of all divisors σ(n): 487515974400
• Sum of proper divisors (its aliquot sum) s(n): 348834713400
• 138681261000 is an abundant number, because the sum of its proper divisors (348834713400) is greater than itself. Its abundance is 210153452400

Bases of 138681261000

• Binary: 10000001001010000011000001101111001000₂
• Hexadecimal: 0x204A0C1BC8
• Base-36: 1RPJ8PU0

Squares and roots of 138681261000

• 138681261000 squared (138681261000²) is 19232492152550121000000
• 138681261000 cubed (138681261000³) is 2667186263888255145982581000000000
• The square root of 138681261000 is 372399.3300208797
• The cube root of 138681261000 is 5176.1389637583

Scales and comparisons

• 138,681,261,000 seconds is equal to 4,409 years, 33 weeks, 4 hours, 30 minutes.
• To count from 1 to 138,681,261,000 would take you about eight thousand, eight hundred nineteen 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 138681261000 cubic inches would be around 431.3 feet tall.

Recreational maths with 138681261000

• 138681261000 backwards is 000162186831
• 138681261000 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138681261000's digits is 36
• More coming soon!