68408900
68,408,900 is an even composite number composed of five prime numbers multiplied together.
68408900 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eight divisors.
Prime factorization of 68408900:
22 × 52 × 72 × 23 × 607
(2 × 2 × 5 × 5 × 7 × 7 × 23 × 607)See below for interesting mathematical facts about the number 68408900 from the Numbermatics database.
Names of 68408900
- Cardinal: 68408900 can be written as Sixty-eight million, four hundred eight thousand, nine hundred.
Scientific notation
- Scientific notation: 6.84089 × 107
Factors of 68408900
Divisors of 68408900
- Number of divisors d(n): 108
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Complete list of divisors:
1 2 4 5 7 10 14 20 23 25 28 35 46 49 50 70 92 98 100 115 140 161 175 196 230 245 322 350 460 490 575 607 644 700 805 980 1127 1150 1214 1225 1610 2254 2300 2428 2450 3035 3220 4025 4249 4508 4900 5635 6070 8050 8498 11270 12140 13961 15175 16100 16996 21245 22540 27922 28175 29743 30350 42490 55844 56350 59486 60700 69805 84980 97727 106225 112700 118972 139610 148715 195454 212450 279220 297430 349025 390908 424900 488635 594860 684089 698050 743575 977270 1368178 1396100 1487150 1954540 2443175 2736356 2974300 3420445 4886350 6840890 9772700 13681780 17102225 34204450 68408900
- Sum of all divisors σ(n): 180488448
- Sum of proper divisors (its aliquot sum) s(n): 112079548
- 68408900 is an abundant number, because the sum of its proper divisors (112079548) is greater than itself. Its abundance is 43670648
Bases of 68408900
- Binary: 1000001001111010110010001002
- Hexadecimal: 0x413D644
- Base-36: 14Q8N8
Squares and roots of 68408900
- 68408900 squared (684089002) is 4679777599210000
- 68408900 cubed (684089003) is 320138437806596969000000
-
The
square root of 68408900 is 8270.9672953047 -
The
cube root of 68408900 is 408.9820075261
Scales and comparisons
How big is 68408900?- 68,408,900 seconds is equal to 2 years, 9 weeks, 18 hours, 28 minutes, 20 seconds.
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To count from 1 to 68,408,900 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 68408900 cubic inches would be around 34.1 feet tall.
Recreational maths with 68408900
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