172138491712

Names of 172138491712

• Cardinal: 172138491712 can be written as One hundred seventy-two billion, one hundred thirty-eight million, four hundred ninety-one thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 1.72138491712 × 10¹¹

Factors of 172138491712

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 153589

Divisors of 172138491712

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 176 352 704 1609 3218 6436 12872 17699 25744 35398 51488 70796 102976 141592 151967 283184 303934 566368 607868 1132736 1215736 1671637 2431472 3343274 4862944 6686548 9725888 13373096 26746192 53492384 106984768 244514903 489029806 978059612 1956119224 2689663933 3912238448 5379327866 7824476896 10758655732 15648953792 21517311464 43034622928 86069245856 172138491712
• Sum of all divisors σ(n): 372874763520
• Sum of proper divisors (its aliquot sum) s(n): 200736271808
• 172138491712 is an abundant number, because the sum of its proper divisors (200736271808) is greater than itself. Its abundance is 28597780096

Bases of 172138491712

• Binary: 10100000010100010000001110111101000000₂
• Hexadecimal: 0x281440EF40
• Base-36: 272UTA9S

Squares and roots of 172138491712

• 172138491712 squared (172138491712²) is 29631660328882292690944
• 172138491712 cubed (172138491712³) is 5100749315936103734603621921456128
• The square root of 172138491712 is 414895.7600554627
• The cube root of 172138491712 is 5562.7899894381

Scales and comparisons

• 172,138,491,712 seconds is equal to 5,473 years, 24 weeks, 3 days, 15 hours, 41 minutes, 52 seconds.
• To count from 1 to 172,138,491,712 would take you about ten thousand, nine hundred forty-six 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 172138491712 cubic inches would be around 463.6 feet tall.

Recreational maths with 172138491712

• 172138491712 backwards is 217194831271
• The number of decimal digits it has is: 12
• The sum of 172138491712's digits is 46
• More coming soon!