31428222378

Names of 31428222378

• Cardinal: 31428222378 can be written as Thirty-one billion, four hundred twenty-eight million, two hundred twenty-two thousand, three hundred seventy-eight.

Scientific notation

• Scientific notation: 3.1428222378 × 10¹⁰

Factors of 31428222378

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 58318

Divisors of 31428222378

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 7 14 21 42 19073 38146 39233 57219 78466 114438 117699 133511 235398 267022 274631 400533 549262 801066 823893 1647786 748291009 1496582018 2244873027 4489746054 5238037063 10476074126 15714111189 31428222378
• Sum of all divisors σ(n): 71841534336
• Sum of proper divisors (its aliquot sum) s(n): 40413311958
• 31428222378 is an abundant number, because the sum of its proper divisors (40413311958) is greater than itself. Its abundance is 8985089580

Bases of 31428222378

• Binary: 11101010001010001001001110110101010₂
• Hexadecimal: 0x751449DAA
• Base-36: EFRJVL6

Squares and roots of 31428222378

• 31428222378 squared (31428222378²) is 987733161841019974884
• 31428222378 cubed (31428222378³) is 31042697460464639652994326754152
• The square root of 31428222378 is 177280.0676274691
• The cube root of 31428222378 is 3155.7791741267

Scales and comparisons

• 31,428,222,378 seconds is equal to 999 years, 16 weeks, 4 days, 13 hours, 46 minutes, 18 seconds.
• To count from 1 to 31,428,222,378 would take you about one thousand, nine hundred ninety-eight 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 31428222378 cubic inches would be around 263 feet tall.

Recreational maths with 31428222378

• 31428222378 backwards is 87322282413
• 31428222378 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31428222378's digits is 42
• More coming soon!