981390307680

Names of 981390307680

• Cardinal: 981390307680 can be written as Nine hundred eighty-one billion, three hundred ninety million, three hundred seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 9.8139030768 × 10¹¹

Factors of 981390307680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1194138

Divisors of 981390307680

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 571 720 1142 1440 1713 2284 2855 3426 4568 5139 5710 6852 8565 9136 10278 11420 13704 17130 18272 20556 22840 25695 27408 34260 41112 45680 51390 54816 68520 82224 91360 102780 137040 164448 205560 274080 411120 822240 1193557 2387114 3580671 4774228 5967785 7161342 9548456 10742013 11935570 14322684 17903355 19096912 21484026 23871140 28645368 35806710 38193824 42968052 47742280 53710065 57290736 71613420 85936104 95484560 107420130 114581472 143226840 171872208 190969120 214840260 286453680 343744416 429680520 572907360 681521047 859361040 1363042094 1718722080 2044563141 2726084188 3407605235 4089126282 5452168376 6133689423 6815210470 8178252564 10222815705 10904336752 12267378846 13630420940 16356505128 20445631410 21808673504 24534757692 27260841880 30668447115 32713010256 40891262820 49069515384 54521683760 61336894230 65426020512 81782525640 98139030768 109043367520 122673788460 163565051280 196278061536 245347576920 327130102560 490695153840 981390307680
• Sum of all divisors σ(n): 3354862374864
• Sum of proper divisors (its aliquot sum) s(n): 2373472067184
• 981390307680 is an abundant number, because the sum of its proper divisors (2373472067184) is greater than itself. Its abundance is 1392081759504

Bases of 981390307680

• Binary: 1110010001111111011010111011000101100000₂
• Hexadecimal: 0xE47F6BB160
• Base-36: CIUEG7S0

Squares and roots of 981390307680

• 981390307680 squared (981390307680²) is 963126936008245066982400
• 981390307680 cubed (981390307680³) is 945203440064027297302699745144832000
• The square root of 981390307680 is 990651.4562044513
• The cube root of 981390307680 is 9937.5788631595

Scales and comparisons

• 981,390,307,680 seconds is equal to 31,205 years, 9 weeks, 1 day, 2 hours, 48 minutes.
• To count from 1 to 981,390,307,680 would take you about sixty-two thousand, four hundred ten 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 981390307680 cubic inches would be around 828.1 feet tall.

Recreational maths with 981390307680

• 981390307680 backwards is 086703093189
• The number of decimal digits it has is: 12
• The sum of 981390307680's digits is 54
• More coming soon!