31215670472

Names of 31215670472

• Cardinal: 31215670472 can be written as Thirty-one billion, two hundred fifteen million, six hundred seventy thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 3.1215670472 × 10¹⁰

Factors of 31215670472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 781862

Divisors of 31215670472

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 7 8 14 23 28 31 46 56 62 92 124 161 184 217 248 322 434 644 713 868 1288 1426 1736 2852 4991 5704 9982 19964 39928 781799 1563598 3127196 5472593 6254392 10945186 17981377 21890372 24235769 35962754 43780744 48471538 71925508 96943076 125869639 143851016 169650383 193886152 251739278 339300766 503478556 557422687 678601532 1006957112 1114845374 1357203064 2229690748 3901958809 4459381496 7803917618 15607835236 31215670472
• Sum of all divisors σ(n): 72050688000
• Sum of proper divisors (its aliquot sum) s(n): 40835017528
• 31215670472 is an abundant number, because the sum of its proper divisors (40835017528) is greater than itself. Its abundance is 9619347056

Bases of 31215670472

• Binary: 11101000100100110010101010011001000₂
• Hexadecimal: 0x7449954C8
• Base-36: EC905HK

Squares and roots of 31215670472

• 31215670472 squared (31215670472²) is 974418083016492702784
• 31215670472 cubed (31215670472³) is 30417113781400775951297980994048
• The square root of 31215670472 is 176679.5700470203
• The cube root of 31215670472 is 3148.6488022599

Scales and comparisons

• 31,215,670,472 seconds is equal to 992 years, 29 weeks, 1 day, 11 hours, 34 minutes, 32 seconds.
• To count from 1 to 31,215,670,472 would take you about one thousand, nine hundred eighty-five 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 31215670472 cubic inches would be around 262.4 feet tall.

Recreational maths with 31215670472

• 31215670472 backwards is 27407651213
• The number of decimal digits it has is: 11
• The sum of 31215670472's digits is 38
• More coming soon!