18993315840

Names of 18993315840

• Cardinal: 18993315840 can be written as Eighteen billion, nine hundred ninety-three million, three hundred fifteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.899331584 × 10¹⁰

Factors of 18993315840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 149

Divisors of 18993315840

• Number of divisors d(n): 204
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 139 160 192 240 256 278 320 384 417 480 512 556 640 695 768 834 960 1024 1112 1280 1390 1536 1668 1920 2048 2085 2224 2560 2780 3072 3336 3840 4096 4170 4448 5120 5560 6144 6672 7680 8192 8340 8896 10240 11120 12288 13344 15360 16384 16680 17792 19321 20480 22240 24576 26688 30720 32768 33360 35584 38642 40960 44480 49152 53376 57963 61440 65536 66720 71168 77284 81920 88960 96605 98304 106752 115926 122880 133440 142336 154568 163840 177920 193210 196608 213504 231852 245760 266880 284672 289815 309136 327680 355840 386420 427008 463704 491520 533760 569344 579630 618272 711680 772840 854016 927408 983040 1067520 1138688 1159260 1236544 1423360 1545680 1708032 1854816 2135040 2277376 2318520 2473088 2846720 3091360 3416064 3709632 4270080 4554752 4637040 4946176 5693440 6182720 6832128 7419264 8540160 9109504 9274080 9892352 11386880 12365440 13664256 14838528 17080320 18548160 19784704 22773760 24730880 27328512 29677056 34160640 37096320 39569408 45547520 49461760 59354112 68321280 74192640 79138816 98923520 118708224 136642560 148385280 158277632 197847040 237416448 296770560 316555264 395694080 474832896 593541120 633110528 791388160 949665792 1187082240 1266221056 1582776320 1899331584 2374164480 3165552640 3798663168 4748328960 6331105280 9496657920 18993315840
• Sum of all divisors σ(n): 61218545544
• Sum of proper divisors (its aliquot sum) s(n): 42225229704
• 18993315840 is an abundant number, because the sum of its proper divisors (42225229704) is greater than itself. Its abundance is 23231913864

Bases of 18993315840

• Binary: 10001101100000101110000000000000000₂
• Hexadecimal: 0x46C170000
• Base-36: 8Q44OAO

Squares and roots of 18993315840

• 18993315840 squared (18993315840²) is 360746046597994905600
• 18993315840 cubed (18993315840³) is 6851763601067074752771784704000
• The square root of 18993315840 is 137816.2393914447
• The cube root of 18993315840 is 2668.0886993267

Scales and comparisons

• 18,993,315,840 seconds is equal to 603 years, 48 weeks, 2 days, 1 hour, 4 minutes.
• To count from 1 to 18,993,315,840 would take you about one thousand, two hundred seven 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 18993315840 cubic inches would be around 222.3 feet tall.

Recreational maths with 18993315840

• 18993315840 backwards is 04851339981
• The number of decimal digits it has is: 11
• The sum of 18993315840's digits is 51
• More coming soon!