71261394920

Names of 71261394920

• Cardinal: 71261394920 can be written as Seventy-one billion, two hundred sixty-one million, three hundred ninety-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 7.126139492 × 10¹⁰

Factors of 71261394920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 406

Divisors of 71261394920

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 17 20 29 34 40 58 68 85 116 136 145 170 232 290 340 353 493 580 680 706 841 986 1160 1412 1682 1765 1972 2465 2824 3364 3530 3944 4205 4930 6001 6728 7060 8410 9860 10237 12002 14120 14297 16820 19720 20474 24004 28594 30005 33640 40948 48008 51185 57188 60010 71485 81896 102370 114376 120020 124609 142970 174029 204740 240040 249218 285940 296873 348058 409480 498436 571880 593746 623045 696116 870145 996872 1187492 1246090 1392232 1484365 1740290 2118353 2374984 2492180 2968730 3480580 3613661 4236706 4984360 5046841 5937460 6961160 7227322 8473412 10093682 10591765 11874920 14454644 16946824 18068305 20187364 21183530 25234205 28909288 36136610 40374728 42367060 50468410 61432237 72273220 84734120 100936820 104796169 122864474 144546440 201873640 209592338 245728948 307161185 419184676 491457896 523980845 614322370 838369352 1047961690 1228644740 1781534873 2095923380 2457289480 3563069746 4191846760 7126139492 8907674365 14252278984 17815348730 35630697460 71261394920
• Sum of all divisors σ(n): 176325292260
• Sum of proper divisors (its aliquot sum) s(n): 105063897340
• 71261394920 is an abundant number, because the sum of its proper divisors (105063897340) is greater than itself. Its abundance is 33802502420

Bases of 71261394920

• Binary: 1000010010111100000101001011111101000₂
• Hexadecimal: 0x10978297E8
• Base-36: WQJ7088

Squares and roots of 71261394920

• 71261394920 squared (71261394920²) is 5078186405944201806400
• 71261394920 cubed (71261394920³) is 361878646951365200410047783488000
• The square root of 71261394920 is 266948.3000882379
• The cube root of 71261394920 is 4145.8931631337

Scales and comparisons

• 71,261,394,920 seconds is equal to 2,265 years, 46 weeks, 2 days, 15 hours, 55 minutes, 20 seconds.
• To count from 1 to 71,261,394,920 would take you about four thousand, five hundred thirty-one 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 71261394920 cubic inches would be around 345.5 feet tall.

Recreational maths with 71261394920

• 71261394920 backwards is 02949316217
• The number of decimal digits it has is: 11
• The sum of 71261394920's digits is 44
• More coming soon!