18315280128

Names of 18315280128

• Cardinal: 18315280128 can be written as Eighteen billion, three hundred fifteen million, two hundred eighty thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8315280128 × 10¹⁰

Factors of 18315280128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2186

Divisors of 18315280128

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 12 16 19 24 31 32 38 48 57 62 64 76 93 96 114 124 128 152 186 192 228 248 256 304 361 372 384 456 496 589 608 722 744 768 912 992 1083 1178 1216 1444 1488 1767 1824 1984 2131 2166 2356 2432 2888 2976 3534 3648 3968 4262 4332 4712 4864 5776 5952 6393 7068 7296 7936 8524 8664 9424 11191 11552 11904 12786 14136 14592 17048 17328 18848 22382 23104 23808 25572 28272 33573 34096 34656 37696 40489 44764 46208 51144 56544 66061 67146 68192 69312 75392 80978 89528 92416 102288 113088 121467 132122 134292 136384 138624 150784 161956 179056 198183 204576 226176 242934 264244 268584 272768 277248 323912 358112 396366 409152 452352 485868 528488 537168 545536 647824 716224 769291 792732 818304 971736 1056976 1074336 1255159 1295648 1432448 1538582 1585464 1636608 1943472 2113952 2148672 2307873 2510318 2591296 2864896 3077164 3170928 3765477 3886944 4227904 4297344 4615746 5020636 5182592 6154328 6341856 7530954 7773888 8455808 8594688 9231492 10041272 10365184 12308656 12683712 15061908 15547776 16911616 18462984 20082544 23848021 24617312 25367424 30123816 31095552 36925968 40165088 47696042 49234624 50734848 60247632 71544063 73851936 80330176 95392084 98469248 120495264 143088126 147703872 160660352 190784168 196938496 240990528 286176252 295407744 321320704 381568336 481981056 572352504 590815488 763136672 963962112 1144705008 1526273344 2289410016 3052546688 4578820032 6105093376 9157640064 18315280128
• Sum of all divisors σ(n): 53130395136
• Sum of proper divisors (its aliquot sum) s(n): 34815115008
• 18315280128 is an abundant number, because the sum of its proper divisors (34815115008) is greater than itself. Its abundance is 16499834880

Bases of 18315280128

• Binary: 10001000011101011001111111100000000₂
• Hexadecimal: 0x443ACFF00
• Base-36: 8EWG0LC

Squares and roots of 18315280128

• 18315280128 squared (18315280128²) is 335449486167111696384
• 18315280128 cubed (18315280128³) is 6143851307944311739938244657152
• The square root of 18315280128 is 135333.9577785267
• The cube root of 18315280128 is 2635.9541701969

Scales and comparisons

• 18,315,280,128 seconds is equal to 582 years, 19 weeks, 1 day, 9 hours, 48 minutes, 48 seconds.
• To count from 1 to 18,315,280,128 would take you about one thousand, one hundred sixty-four 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 18315280128 cubic inches would be around 219.7 feet tall.

Recreational maths with 18315280128

• 18315280128 backwards is 82108251381
• The number of decimal digits it has is: 11
• The sum of 18315280128's digits is 39
• More coming soon!