71390139249

Names of 71390139249

• Cardinal: 71390139249 can be written as Seventy-one billion, three hundred ninety million, one hundred thirty-nine thousand, two hundred forty-nine.

Scientific notation

• Scientific notation: 7.1390139249 × 10¹⁰

Factors of 71390139249

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 599

Divisors of 71390139249

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 11 13 33 39 71 73 97 143 213 219 291 331 429 781 803 923 949 993 1067 1261 2343 2409 2769 2847 3201 3641 3783 4303 5183 6887 7081 10153 10439 10923 12909 13871 15549 20661 21243 23501 24163 30459 31317 32107 41613 47333 57013 67379 70503 72489 75757 77891 89531 92053 96321 141999 171039 202137 227271 233673 258511 265793 268593 276159 305513 314119 353177 417391 502751 741169 775533 797379 916539 942357 984841 1012583 1059531 1252173 1508253 1715573 2223507 2279597 2343811 2954523 3037749 3360643 3455309 4591301 5146719 5530261 6535763 6838791 7031433 10081929 10365927 13773903 16590783 18871303 19607289 22302449 25075567 25781921 29634761 30469543 56613909 66907347 71893393 75226701 77345763 88904283 91408629 166410581 215680179 245326939 325982371 335164973 499231743 735980817 977947113 1005494919 1830516391 2163337553 5491549173 6490012659 23796713083 71390139249
• Sum of all divisors σ(n): 116492414976
• Sum of proper divisors (its aliquot sum) s(n): 45102275727
• 71390139249 is a deficient number, because the sum of its proper divisors (45102275727) is less than itself. Its deficiency is 26287863522

Bases of 71390139249

• Binary: 1000010011111001011110001001101110001₂
• Hexadecimal: 0x109F2F1371
• Base-36: WSNUFZL

Squares and roots of 71390139249

• 71390139249 squared (71390139249²) is 5096551981991610284001
• 71390139249 cubed (71390139249³) is 363843555684147998524571826855249
• The square root of 71390139249 is 267189.3322140687
• The cube root of 71390139249 is 4148.3883856735

Scales and comparisons

• 71,390,139,249 seconds is equal to 2,269 years, 51 weeks, 1 day, 18 hours, 14 minutes, 9 seconds.
• To count from 1 to 71,390,139,249 would take you about four thousand, five hundred thirty-nine 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 71390139249 cubic inches would be around 345.7 feet tall.

Recreational maths with 71390139249

• 71390139249 backwards is 94293109317
• The number of decimal digits it has is: 11
• The sum of 71390139249's digits is 48
• More coming soon!