18038531680

Names of 18038531680

• Cardinal: 18038531680 can be written as Eighteen billion, thirty-eight million, five hundred thirty-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.803853168 × 10¹⁰

Factors of 18038531680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 48648

Divisors of 18038531680

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 179 208 260 358 416 520 716 895 1040 1432 1790 2080 2327 2864 3580 4654 5728 7160 9308 11635 14320 18616 23270 28640 37232 46540 48449 74464 93080 96898 186160 193796 242245 372320 387592 484490 629837 775184 968980 1259674 1550368 1937960 2519348 3149185 3875920 5038696 6298370 7751840 8672371 10077392 12596740 17344742 20154784 25193480 34689484 43361855 50386960 69378968 86723710 100773920 112740823 138757936 173447420 225481646 277515872 346894840 450963292 563704115 693789680 901926584 1127408230 1387579360 1803853168 2254816460 3607706336 4509632920 9019265840 18038531680
• Sum of all divisors σ(n): 46151532000
• Sum of proper divisors (its aliquot sum) s(n): 28113000320
• 18038531680 is an abundant number, because the sum of its proper divisors (28113000320) is greater than itself. Its abundance is 10074468640

Bases of 18038531680

• Binary: 10000110011001011100010011001100000₂
• Hexadecimal: 0x4332E2660
• Base-36: 8ABOC4G

Squares and roots of 18038531680

• 18038531680 squared (18038531680²) is 325388625170363622400
• 18038531680 cubed (18038531680³) is 5869533023447249599781957632000
• The square root of 18038531680 is 134307.6009762665
• The cube root of 18038531680 is 2622.6100904861

Scales and comparisons

• 18,038,531,680 seconds is equal to 573 years, 29 weeks, 4 days, 7 hours, 14 minutes, 40 seconds.
• To count from 1 to 18,038,531,680 would take you about one thousand, one hundred forty-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 18038531680 cubic inches would be around 218.6 feet tall.

Recreational maths with 18038531680

• 18038531680 backwards is 08613583081
• The number of decimal digits it has is: 11
• The sum of 18038531680's digits is 43
• More coming soon!