138486805920

Names of 138486805920

• Cardinal: 138486805920 can be written as One hundred thirty-eight billion, four hundred eighty-six million, eight hundred five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.3848680592 × 10¹¹

Factors of 138486805920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1034142

Divisors of 138486805920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 32 36 40 45 48 54 60 62 72 80 90 93 96 108 120 124 135 144 155 160 180 186 216 240 248 270 279 288 310 360 372 432 465 480 496 540 558 620 720 744 837 864 930 992 1080 1116 1240 1395 1440 1488 1674 1860 2160 2232 2480 2790 2976 3348 3720 4185 4320 4464 4960 5580 6696 7440 8370 8928 11160 13392 14880 16740 22320 26784 33480 44640 66960 133920 1034101 2068202 3102303 4136404 5170505 6204606 8272808 9306909 10341010 12409212 15511515 16545616 18613818 20682020 24818424 27920727 31023030 32057131 33091232 37227636 41364040 46534545 49636848 55841454 62046060 64114262 74455272 82728080 93069090 96171393 99273696 111682908 124092120 128228524 139603635 148910544 160285655 165456160 186138180 192342786 223365816 248184240 256457048 279207270 288514179 297821088 320571310 372276360 384685572 446731632 480856965 496368480 512914096 558414540 577028358 641142620 744552720 769371144 865542537 893463264 961713930 1025828192 1116829080 1154056716 1282285240 1442570895 1489105440 1538742288 1731085074 1923427860 2233658160 2308113432 2564570480 2885141790 3077484576 3462170148 3846855720 4327712685 4467316320 4616226864 5129140960 5770283580 6924340296 7693711440 8655425370 9232453728 11540567160 13848680592 15387422880 17310850740 23081134320 27697361184 34621701480 46162268640 69243402960 138486805920
• Sum of all divisors σ(n): 500339911680
• Sum of proper divisors (its aliquot sum) s(n): 361853105760
• 138486805920 is an abundant number, because the sum of its proper divisors (361853105760) is greater than itself. Its abundance is 223366299840

Bases of 138486805920

• Binary: 10000000111110011101001111010110100000₂
• Hexadecimal: 0x203E74F5A0
• Base-36: 1RMBGVC0

Squares and roots of 138486805920

• 138486805920 squared (138486805920²) is 19178595413923747046400
• 138486805920 cubed (138486805920³) is 2655982420906260022893970034688000
• The square root of 138486805920 is 372138.1543459365
• The cube root of 138486805920 is 5173.7185518555

Scales and comparisons

• 138,486,805,920 seconds is equal to 4,403 years, 23 weeks, 3 days, 13 hours, 12 minutes.
• To count from 1 to 138,486,805,920 would take you about eight thousand, eight hundred 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 138486805920 cubic inches would be around 431.1 feet tall.

Recreational maths with 138486805920

• 138486805920 backwards is 029508684831
• 138486805920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138486805920's digits is 54
• More coming soon!