680642640
680,642,640 is an even composite number composed of five prime numbers multiplied together.
680642640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 680642640:
24 × 32 × 5 × 41 × 23057
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 41 × 23057)See below for interesting mathematical facts about the number 680642640 from the Numbermatics database.
Names of 680642640
- Cardinal: 680642640 can be written as Six hundred eighty million, six hundred forty-two thousand, six hundred forty.
Scientific notation
- Scientific notation: 6.8064264 × 108
Factors of 680642640
Divisors of 680642640
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 41 45 48 60 72 80 82 90 120 123 144 164 180 205 240 246 328 360 369 410 492 615 656 720 738 820 984 1230 1476 1640 1845 1968 2460 2952 3280 3690 4920 5904 7380 9840 14760 23057 29520 46114 69171 92228 115285 138342 184456 207513 230570 276684 345855 368912 415026 461140 553368 691710 830052 922280 945337 1037565 1106736 1383420 1660104 1844560 1890674 2075130 2766840 2836011 3320208 3781348 4150260 4726685 5533680 5672022 7562696 8300520 8508033 9453370 11344044 14180055 15125392 16601040 17016066 18906740 22688088 28360110 34032132 37813480 42540165 45376176 56720220 68064264 75626960 85080330 113440440 136128528 170160660 226880880 340321320 680642640
- Sum of all divisors σ(n): 2341678248
- Sum of proper divisors (its aliquot sum) s(n): 1661035608
- 680642640 is an abundant number, because the sum of its proper divisors (1661035608) is greater than itself. Its abundance is 980392968
Bases of 680642640
- Binary: 1010001001000111001000010100002
- Hexadecimal: 0x2891C850
- Base-36: B98J80
Squares and roots of 680642640
- 680642640 squared (6806426402) is 463274403386169600
- 680642640 cubed (6806426403) is 315324312965187416031744000
-
The
square root of 680642640 is 26089.1287704285 -
The
cube root of 680642640 is 879.6428647233
Scales and comparisons
How big is 680642640?- 680,642,640 seconds is equal to 21 years, 33 weeks, 2 days, 19 hours, 24 minutes.
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To count from 1 to 680,642,640 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 680642640 cubic inches would be around 73.3 feet tall.
Recreational maths with 680642640
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