18345439674743168

Names of 18345439674743168

• Cardinal: 18345439674743168 can be written as Eighteen quadrillion, three hundred forty-five trillion, four hundred thirty-nine billion, six hundred seventy-four million, seven hundred forty-three thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8345439674743168 × 10¹⁶

Factors of 18345439674743168

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 380169091447

Divisors of 18345439674743168

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 16 26 29 32 52 58 64 104 116 128 208 232 377 416 464 754 832 928 1508 1664 1856 3016 3712 6032 12064 24128 48256 380169091403 760338182806 1520676365612 3041352731224 4942198188239 6082705462448 9884396376478 11024903650687 12165410924896 19768792752956 22049807301374 24330821849792 39537585505912 44099614602748 48661643699584 79075171011824 88199229205496 143323747458931 158150342023648 176398458410992 286647494917862 316300684047296 352796916821984 573294989835724 632601368094592 705593833643968 1146589979671448 1411187667287936 2293179959342896 4586359918685792 9172719837371584 18345439674743168
• Sum of all divisors σ(n): 40716109689368400
• Sum of proper divisors (its aliquot sum) s(n): 22370670014625232
• 18345439674743168 is an abundant number, because the sum of its proper divisors (22370670014625232) is greater than itself. Its abundance is 4025230339882064

Bases of 18345439674743168

• Binary: 1000001001011010001010010000111000011111011100110000000₂
• Hexadecimal: 0x412D14870FB980
• Base-36: 50MWYN14JNK

Squares and roots of 18345439674743168

• 18345439674743168 squared (18345439674743168²) is 336555156859640713699846762676224
• 18345439674743168 cubed (18345439674743168³) is 6174252327392263021307909597639749905035540037632
• The square root of 18345439674743168 is 135445338.3278404601
• The cube root of 18345439674743168 is 263740.0241192565

Scales and comparisons

• 18,345,439,674,743,168 seconds is equal to 583,328,235 years, 25 weeks, 1 day, 22 hours, 26 minutes, 8 seconds.
• To count from 1 to 18,345,439,674,743,168 would take you about one billion, seven hundred forty-nine million, nine hundred eighty-four thousand, seven 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 18345439674743168 cubic inches would be around 21978.3 feet tall.

Recreational maths with 18345439674743168

• 18345439674743168 backwards is 86134747693454381
• The number of decimal digits it has is: 17
• The sum of 18345439674743168's digits is 83
• More coming soon!