71285400980

Names of 71285400980

• Cardinal: 71285400980 can be written as Seventy-one billion, two hundred eighty-five million, four hundred thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 7.128540098 × 10¹⁰

Factors of 71285400980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6474

Divisors of 71285400980

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 20 23 46 92 115 157 230 314 460 628 785 1570 3140 3611 6287 7222 12574 14444 18055 24649 25148 31435 36110 49298 62870 72220 98596 123245 125740 144601 246490 289202 492980 566927 578404 723005 987059 1133854 1446010 1974118 2267708 2834635 2892020 3948236 4935295 5669270 9870590 11338540 19741180 22702357 45404714 90809428 113511785 154968263 227023570 309936526 454047140 619873052 774841315 1549682630 3099365260 3564270049 7128540098 14257080196 17821350245 35642700490 71285400980
• Sum of all divisors σ(n): 157234307328
• Sum of proper divisors (its aliquot sum) s(n): 85948906348
• 71285400980 is an abundant number, because the sum of its proper divisors (85948906348) is greater than itself. Its abundance is 14663505368

Bases of 71285400980

• Binary: 1000010011000111100001110010110010100₂
• Hexadecimal: 0x1098F0E594
• Base-36: WQXHJF8

Squares and roots of 71285400980

• 71285400980 squared (71285400980²) is 5081608392879384960400
• 71285400980 cubed (71285400980³) is 362244491909740333677895421192000
• The square root of 71285400980 is 266993.2601771063
• The cube root of 71285400980 is 4146.3586577459

Scales and comparisons

• 71,285,400,980 seconds is equal to 2,266 years, 34 weeks, 12 hours, 16 minutes, 20 seconds.
• To count from 1 to 71,285,400,980 would take you about four thousand, five hundred thirty-three 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 71285400980 cubic inches would be around 345.5 feet tall.

Recreational maths with 71285400980

• 71285400980 backwards is 08900458217
• The number of decimal digits it has is: 11
• The sum of 71285400980's digits is 44
• More coming soon!