18918420567632064

Names of 18918420567632064

• Cardinal: 18918420567632064 can be written as Eighteen quadrillion, nine hundred eighteen trillion, four hundred twenty billion, five hundred sixty-seven million, six hundred thirty-two thousand and sixty-four.

Scientific notation

• Scientific notation: 1.8918420567632064 × 10¹⁶

Factors of 18918420567632064

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2604844643

Divisors of 18918420567632064

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 467 486 576 648 864 934 972 1296 1401 1728 1868 1944 2592 2802 3736 3888 4203 5184 5604 7472 7776 8406 11208 12609 14944 15552 16812 22416 25218 29888 33624 37827 44832 50436 67248 75654 89664 100872 113481 134496 151308 201744 226962 268992 302616 403488 453924 605232 806976 907848 1210464 1815696 2420928 3631392 7262784 2604844171 5209688342 7814532513 10419376684 15629065026 20838753368 23443597539 31258130052 41677506736 46887195078 62516260104 70330792617 83355013472 93774390156 125032520208 140661585234 166710026944 187548780312 210992377851 250065040416 281323170468 375097560624 421984755702 500130080832 562646340936 632977133553 750195121248 843969511404 1125292681872 1216462227857 1265954267106 1500390242496 1687939022808 2250585363744 2432924455714 2531908534212 3375878045616 3649386683571 4501170727488 4865848911428 5063817068424 6751756091232 7298773367142 9731697822856 10127634136848 10948160050713 13503512182464 14597546734284 19463395645712 20255268273696 21896320101426 29195093468568 32844480152139 38926791291424 40510536547392 43792640202852 58390186937136 65688960304278 77853582582848 87585280405704 98533440456417 116780373874272 131377920608556 175170560811408 197066880912834 233560747748544 262755841217112 295600321369251 350341121622816 394133761825668 525511682434224 591200642738502 700682243245632 788267523651336 1051023364868448 1182401285477004 1576535047302672 2102046729736896 2364802570954008 3153070094605344 4729605141908016 6306140189210688 9459210283816032 18918420567632064
• Sum of all divisors σ(n): 56355032627345088
• Sum of proper divisors (its aliquot sum) s(n): 37436612059713024
• 18918420567632064 is an abundant number, because the sum of its proper divisors (37436612059713024) is greater than itself. Its abundance is 18518191492080960

Bases of 18918420567632064

• Binary: 1000011001101100011010000001001101001010010100011000000₂
• Hexadecimal: 0x43363409A528C0
• Base-36: 56A0QFETO00

Squares and roots of 18918420567632064

• 18918420567632064 squared (18918420567632064²) is 357906636773803906643920080900096
• 18918420567632064 cubed (18918420567632064³) is 6771028278433550254743083196453662740688470278144
• The square root of 18918420567632064 is 137544249.4895081537
• The cube root of 18918420567632064 is 266457.7104962657

Scales and comparisons

• 18,918,420,567,632,064 seconds is equal to 601,547,255 years, 27 weeks, 5 days, 6 hours, 14 minutes, 24 seconds.
• To count from 1 to 18,918,420,567,632,064 would take you about one billion, eight hundred four million, six hundred forty-one thousand, seven hundred sixty-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 18918420567632064 cubic inches would be around 22204.8 feet tall.

Recreational maths with 18918420567632064

• 18918420567632064 backwards is 46023676502481981
• 18918420567632064 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18918420567632064's digits is 72
• More coming soon!