18940572672

Names of 18940572672

• Cardinal: 18940572672 can be written as Eighteen billion, nine hundred forty million, five hundred seventy-two thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.8940572672 × 10¹⁰

Factors of 18940572672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 880805

Divisors of 18940572672

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 672 768 896 1024 1344 1536 1792 2688 3072 3584 5376 7168 10752 21504 880793 1761586 2642379 3523172 5284758 6165551 7046344 10569516 12331102 14092688 18496653 21139032 24662204 28185376 36993306 42278064 49324408 56370752 73986612 84556128 98648816 112741504 147973224 169112256 197297632 225483008 295946448 338224512 394595264 450966016 591892896 676449024 789190528 901932032 1183785792 1352898048 1578381056 2367571584 2705796096 3156762112 4735143168 6313524224 9470286336 18940572672
• Sum of all divisors σ(n): 57695530176
• Sum of proper divisors (its aliquot sum) s(n): 38754957504
• 18940572672 is an abundant number, because the sum of its proper divisors (38754957504) is greater than itself. Its abundance is 19814384832

Bases of 18940572672

• Binary: 10001101000111100100011010000000000₂
• Hexadecimal: 0x468F23400
• Base-36: 8P8Q7EO

Squares and roots of 18940572672

• 18940572672 squared (18940572672²) is 358745293143313219584
• 18940572672 cubed (18940572672³) is 6794841295518867346389045608448
• The square root of 18940572672 is 137624.7531223943
• The cube root of 18940572672 is 2665.6167084275

Scales and comparisons

• 18,940,572,672 seconds is equal to 602 years, 13 weeks, 14 hours, 11 minutes, 12 seconds.
• To count from 1 to 18,940,572,672 would take you about one thousand, two hundred 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 18940572672 cubic inches would be around 222.1 feet tall.

Recreational maths with 18940572672

• 18940572672 backwards is 27627504981
• The number of decimal digits it has is: 11
• The sum of 18940572672's digits is 51
• More coming soon!