680396990
680,396,990 is an even composite number composed of seven prime numbers multiplied together.
What does the number 680396990 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 128 divisors.
680396990 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 680396990:
2 × 5 × 7 × 13 × 31 × 89 × 271
See below for interesting mathematical facts about the number 680396990 from the Numbermatics database.
Names of 680396990
- Cardinal: 680396990 can be written as Six hundred eighty million, three hundred ninety-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 6.8039699 × 108
Factors of 680396990
Divisors of 680396990
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 5 7 10 13 14 26 31 35 62 65 70 89 91 130 155 178 182 217 271 310 403 434 445 455 542 623 806 890 910 1085 1157 1246 1355 1897 2015 2170 2314 2710 2759 2821 3115 3523 3794 4030 5518 5642 5785 6230 7046 8099 8401 9485 11570 13795 14105 16198 16802 17615 18970 19313 24119 24661 27590 28210 35230 35867 38626 40495 42005 48238 49322 58807 71734 80990 84010 96565 109213 117614 120595 123305 168833 179335 193130 218426 241190 246610 251069 294035 313547 337666 358670 502138 546065 588070 627094 747689 764491 844165 1092130 1255345 1495378 1528982 1567735 1688330 2194829 2510690 3135470 3738445 3822455 4389658 5233823 7476890 7644910 9719957 10467646 10974145 19439914 21948290 26169115 48599785 52338230 68039699 97199570 136079398 340198495 680396990
- Sum of all divisors σ(n): 1579253760
- Sum of proper divisors (its aliquot sum) s(n): 898856770
- 680396990 is an abundant number, because the sum of its proper divisors (898856770) is greater than itself. Its abundance is 218459780
Bases of 680396990
- Binary: 1010001000111000001000101111102
- Hexadecimal: 0x288E08BE
- Base-36: B939OE
Squares and roots of 680396990
- 680396990 squared (6803969902) is 462940064001060100
- 680396990 cubed (6803969903) is 314983026096728648849099000
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The
square root of 680396990 is 26084.4204459291 -
The
cube root of 680396990 is 879.5370283377
Scales and comparisons
How big is 680396990?- 680,396,990 seconds is equal to 21 years, 32 weeks, 6 days, 23 hours, 9 minutes, 50 seconds.
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To count from 1 to 680,396,990 would take you about thirty-two 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 680396990 cubic inches would be around 73.3 feet tall.
Recreational maths with 680396990
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