18105320640

Names of 18105320640

• Cardinal: 18105320640 can be written as Eighteen billion, one hundred five million, three hundred twenty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.810532064 × 10¹⁰

Factors of 18105320640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1714540

Divisors of 18105320640

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 132 160 165 176 192 220 240 264 320 330 352 440 480 528 660 704 880 960 1056 1320 1760 2112 2640 3520 5280 10560 1714519 3429038 5143557 6858076 8572595 10287114 13716152 17145190 18859709 20574228 25717785 27432304 34290380 37719418 41148456 51435570 54864608 56579127 68580760 75438836 82296912 94298545 102871140 109729216 113158254 137161520 150877672 164593824 188597090 205742280 226316508 274323040 282895635 301755344 329187648 377194180 411484560 452633016 548646080 565791270 603510688 754388360 822969120 905266032 1131582540 1207021376 1508776720 1645938240 1810532064 2263165080 3017553440 3621064128 4526330160 6035106880 9052660320 18105320640
• Sum of all divisors σ(n): 62710283520
• Sum of proper divisors (its aliquot sum) s(n): 44604962880
• 18105320640 is an abundant number, because the sum of its proper divisors (44604962880) is greater than itself. Its abundance is 26499642240

Bases of 18105320640

• Binary: 10000110111001010010100010011000000₂
• Hexadecimal: 0x4372944C0
• Base-36: 8BFFUTC

Squares and roots of 18105320640

• 18105320640 squared (18105320640²) is 327802635477210009600
• 18105320640 cubed (18105320640³) is 5934971821951926636425478144000
• The square root of 18105320640 is 134556.0130206005
• The cube root of 18105320640 is 2625.8429046377

Scales and comparisons

• 18,105,320,640 seconds is equal to 575 years, 36 weeks, 7 hours, 44 minutes.
• To count from 1 to 18,105,320,640 would take you about one thousand, one hundred fifty-one 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 18105320640 cubic inches would be around 218.8 feet tall.

Recreational maths with 18105320640

• 18105320640 backwards is 04602350181
• 18105320640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18105320640's digits is 30
• More coming soon!