668727664640
668,727,664,640 is an even composite number composed of five prime numbers multiplied together.
668727664640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 668727664640:
213 × 5 × 72 × 67 × 4973
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 67 × 4973)See below for interesting mathematical facts about the number 668727664640 from the Numbermatics database.
Names of 668727664640
- Cardinal: 668727664640 can be written as Six hundred sixty-eight billion, seven hundred twenty-seven million, six hundred sixty-four thousand, six hundred forty.
Scientific notation
- Scientific notation: 6.6872766464 × 1011
Factors of 668727664640
Divisors of 668727664640
- Number of divisors d(n): 336
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 67 70 80 98 112 128 134 140 160 196 224 245 256 268 280 320 335 392 448 469 490 512 536 560 640 670 784 896 938 980 1024 1072 1120 1280 1340 1568 1792 1876 1960 2048 2144 2240 2345 2560 2680 3136 3283 3584 3752 3920 4096 4288 4480 4690 4973 5120 5360 6272 6566 7168 7504 7840 8192 8576 8960 9380 9946 10240 10720 12544 13132 14336 15008 15680 16415 17152 17920 18760 19892 20480 21440 24865 25088 26264 28672 30016 31360 32830 34304 34811 35840 37520 39784 40960 42880 49730 50176 52528 57344 60032 62720 65660 68608 69622 71680 75040 79568 85760 99460 100352 105056 120064 125440 131320 137216 139244 143360 150080 159136 171520 174055 198920 200704 210112 240128 243677 250880 262640 274432 278488 286720 300160 318272 333191 343040 348110 397840 401408 420224 480256 487354 501760 525280 548864 556976 600320 636544 666382 686080 696220 795680 840448 960512 974708 1003520 1050560 1113952 1200640 1218385 1273088 1332764 1372160 1392440 1591360 1665955 1680896 1921024 1949416 2007040 2101120 2227904 2332337 2401280 2436770 2546176 2665528 2744320 2784880 3182720 3331910 3361792 3842048 3898832 4202240 4455808 4664674 4802560 4873540 5092352 5331056 5569760 6365440 6663820 6723584 7797664 8404480 8911616 9329348 9605120 9747080 10184704 10662112 11139520 11661685 12730880 13327640 13447168 15595328 16326359 16808960 17823232 18658696 19210240 19494160 20369408 21324224 22279040 23323370 25461760 26655280 26894336 31190656 32652718 33617920 35646464 37317392 38988320 40738816 42648448 44558080 46646740 50923520 53310560 62381312 65305436 67235840 71292928 74634784 77976640 81631795 85296896 89116160 93293480 101847040 106621120 124762624 130610872 134471680 142585856 149269568 155953280 163263590 170593792 178232320 186586960 203694080 213242240 249525248 261221744 285171712 298539136 311906560 326527180 341187584 356464640 373173920 426484480 499050496 522443488 597078272 623813120 653054360 682375168 712929280 746347840 852968960 998100992 1044886976 1194156544 1247626240 1306108720 1364750336 1425858560 1492695680 1705937920 1996201984 2089773952 2388313088 2495252480 2612217440 2729500672 2985391360 3411875840 4179547904 4776626176 4990504960 5224434880 5970782720 6823751680 8359095808 9553252352 9981009920 10448869760 11941565440 13647503360 16718191616 19106504704 20897739520 23883130880 33436383232 41795479040 47766261760 66872766464 83590958080 95532523520 133745532928 167181916160 334363832320 668727664640
- Sum of all divisors σ(n): 1895109160752
- Sum of proper divisors (its aliquot sum) s(n): 1226381496112
- 668727664640 is an abundant number, because the sum of its proper divisors (1226381496112) is greater than itself. Its abundance is 557653831472
Bases of 668727664640
- Binary: 10011011101100110100011001100000000000002
- Hexadecimal: 0x9BB3466000
- Base-36: 8J7J6OE8
Squares and roots of 668727664640
- 668727664640 squared (6687276646402) is 447196689454868306329600
- 668727664640 cubed (6687276646403) is 299052797773893397170545538105344000
-
The
square root of 668727664640 is 817757.7053382011 -
The
cube root of 668727664640 is 8744.7976243029
Scales and comparisons
How big is 668727664640?- 668,727,664,640 seconds is equal to 21,263 years, 24 weeks, 3 days, 12 hours, 37 minutes, 20 seconds.
-
To count from 1 to 668,727,664,640 would take you about forty-two thousand, five hundred twenty-six 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 668727664640 cubic inches would be around 728.7 feet tall.
Recreational maths with 668727664640
- 668727664640 backwards is 046466727866
- The number of decimal digits it has is: 12
- The sum of 668727664640's digits is 62
- More coming soon!
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