138393310720

Names of 138393310720

• Cardinal: 138393310720 can be written as One hundred thirty-eight billion, three hundred ninety-three million, three hundred ten thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.3839331072 × 10¹¹

Factors of 138393310720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 411

Divisors of 138393310720

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 256 280 320 343 392 397 448 490 512 560 640 686 784 794 896 980 1120 1280 1372 1568 1588 1715 1792 1960 1985 2240 2560 2744 2779 3136 3176 3430 3584 3920 3970 4480 5488 5558 6272 6352 6860 7840 7940 8960 10976 11116 12544 12704 13720 13895 15680 15880 17920 19453 21952 22232 25088 25408 27440 27790 31360 31760 38906 43904 44464 50816 54880 55580 62720 63520 77812 87808 88928 97265 101632 109760 111160 125440 127040 136171 155624 157609 175616 177856 194530 203264 219520 222320 254080 272342 311248 315218 355712 389060 439040 444640 508160 544684 622496 630436 680855 711424 778120 788045 878080 889280 1016320 1089368 1103263 1244992 1260872 1361710 1422848 1556240 1576090 1778560 2178736 2206526 2489984 2521744 2723420 3112480 3152180 3557120 4357472 4413052 4979968 5043488 5446840 5516315 6224960 6304360 7114240 7722841 8714944 8826104 9959936 10086976 10893680 11032630 12449920 12608720 15445682 17429888 17652208 20173952 21787360 22065260 24899840 25217440 30891364 34859776 35304416 38614205 40347904 43574720 44130520 49799680 50434880 54059887 61782728 69719552 70608832 77228410 80695808 87149440 88261040 100869760 108119774 123565456 141217664 154456820 174298880 176522080 201739520 216239548 247130912 270299435 282435328 308913640 348597760 353044160 403479040 432479096 494261824 540598870 564870656 617827280 706088320 864958192 988523648 1081197740 1235654560 1412176640 1729916384 1977047296 2162395480 2471309120 2824353280 3459832768 3954094592 4324790960 4942618240 6919665536 8649581920 9885236480 13839331072 17299163840 19770472960 27678662144 34598327680 69196655360 138393310720
• Sum of all divisors σ(n): 387938786400
• Sum of proper divisors (its aliquot sum) s(n): 249545475680
• 138393310720 is an abundant number, because the sum of its proper divisors (249545475680) is greater than itself. Its abundance is 111152164960

Bases of 138393310720

• Binary: 10000000111000111000100101011000000000₂
• Hexadecimal: 0x2038E25600
• Base-36: 1RKRSXZ4

Squares and roots of 138393310720

• 138393310720 squared (138393310720²) is 19152708452042466918400
• 138393310720 cubed (138393310720³) is 2650606731933083342873452085248000
• The square root of 138393310720 is 372012.5141981113
• The cube root of 138393310720 is 5172.5539962763

Scales and comparisons

• 138,393,310,720 seconds is equal to 4,400 years, 24 weeks, 6 days, 10 hours, 18 minutes, 40 seconds.
• To count from 1 to 138,393,310,720 would take you about eight thousand, eight hundred 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 138393310720 cubic inches would be around 431 feet tall.

Recreational maths with 138393310720

• 138393310720 backwards is 027013393831
• 138393310720 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138393310720's digits is 40
• More coming soon!