68521440
68,521,440 is an even composite number composed of six prime numbers multiplied together.
68521440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 68521440:
25 × 3 × 5 × 13 × 79 × 139
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 79 × 139)See below for interesting mathematical facts about the number 68521440 from the Numbermatics database.
Names of 68521440
- Cardinal: 68521440 can be written as Sixty-eight million, five hundred twenty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 6.852144 × 107
Factors of 68521440
Divisors of 68521440
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 79 80 96 104 120 130 139 156 158 160 195 208 237 240 260 278 312 316 390 395 416 417 474 480 520 556 624 632 695 780 790 834 948 1027 1040 1112 1185 1248 1264 1390 1560 1580 1668 1807 1896 2054 2080 2085 2224 2370 2528 2780 3081 3120 3160 3336 3614 3792 4108 4170 4448 4740 5135 5421 5560 6162 6240 6320 6672 7228 7584 8216 8340 9035 9480 10270 10842 10981 11120 12324 12640 13344 14456 15405 16432 16680 18070 18960 20540 21684 21962 22240 24648 27105 28912 30810 32864 32943 33360 36140 37920 41080 43368 43924 49296 54210 54905 57824 61620 65886 66720 72280 82160 86736 87848 98592 108420 109810 123240 131772 142753 144560 164320 164715 173472 175696 216840 219620 246480 263544 285506 289120 329430 351392 428259 433680 439240 492960 527088 571012 658860 713765 856518 867360 878480 1054176 1142024 1317720 1427530 1713036 1756960 2141295 2284048 2635440 2855060 3426072 4282590 4568096 5270880 5710120 6852144 8565180 11420240 13704288 17130360 22840480 34260720 68521440
- Sum of all divisors σ(n): 237081600
- Sum of proper divisors (its aliquot sum) s(n): 168560160
- 68521440 is an abundant number, because the sum of its proper divisors (168560160) is greater than itself. Its abundance is 100038720
Bases of 68521440
- Binary: 1000001010110001101111000002
- Hexadecimal: 0x4158DE0
- Base-36: 14SNHC
Squares and roots of 68521440
- 68521440 squared (685214402) is 4695187739673600
- 68521440 cubed (685214403) is 321721024992780201984000
-
The
square root of 68521440 is 8277.7678150573 -
The
cube root of 68521440 is 409.2061577873
Scales and comparisons
How big is 68521440?- 68,521,440 seconds is equal to 2 years, 9 weeks, 2 days, 1 hour, 44 minutes.
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To count from 1 to 68,521,440 would take you about 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 68521440 cubic inches would be around 34.1 feet tall.
Recreational maths with 68521440
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The information we have on file for 68521440 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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