73972145728

Names of 73972145728

• Cardinal: 73972145728 can be written as Seventy-three billion, nine hundred seventy-two million, one hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 7.3972145728 × 10¹⁰

Factors of 73972145728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1806

Divisors of 73972145728

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 104 181 208 362 409 416 724 818 832 1201 1448 1636 2353 2402 2896 3272 4706 4804 5317 5792 6544 9412 9608 10634 11584 13088 15613 18824 19216 21268 26176 31226 37648 38432 42536 62452 74029 75296 76864 85072 124904 148058 150592 170144 217381 249808 296116 340288 434762 491209 499616 592232 869524 962377 982418 999232 1184464 1739048 1924754 1964836 2368928 2825953 3478096 3849508 3929672 4737856 5651906 6385717 6956192 7699016 7859344 11303812 12771434 13912384 15398032 15718688 22607624 25542868 30796064 31437376 45215248 51085736 61592128 88908829 90430496 102171472 177817658 180860992 204342944 355635316 408685888 711270632 1155814777 1422541264 2311629554 2845082528 4623259108 5690165056 9246518216 18493036432 36986072864 73972145728
• Sum of all divisors σ(n): 159474580720
• Sum of proper divisors (its aliquot sum) s(n): 85502434992
• 73972145728 is an abundant number, because the sum of its proper divisors (85502434992) is greater than itself. Its abundance is 11530289264

Bases of 73972145728

• Binary: 1000100111001000101010101111001000000₂
• Hexadecimal: 0x1139155E40
• Base-36: XZD3SXS

Squares and roots of 73972145728

• 73972145728 squared (73972145728²) is 5471878343604468649984
• 73972145728 cubed (73972145728³) is 404766582238997011768623872868352
• The square root of 73972145728 is 271978.2081858765
• The cube root of 73972145728 is 4197.8096237127

Scales and comparisons

• 73,972,145,728 seconds is equal to 2,352 years, 4 weeks, 3 days, 2 hours, 15 minutes, 28 seconds.
• To count from 1 to 73,972,145,728 would take you about four thousand, seven hundred four 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 73972145728 cubic inches would be around 349.8 feet tall.

Recreational maths with 73972145728

• 73972145728 backwards is 82754127937
• The number of decimal digits it has is: 11
• The sum of 73972145728's digits is 55
• More coming soon!