1288913990
1,288,913,990 is an even composite number composed of six prime numbers multiplied together.
1288913990 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 1288913990:
2 × 5 × 7 × 133 × 172 × 29
(2 × 5 × 7 × 13 × 13 × 13 × 17 × 17 × 29)See below for interesting mathematical facts about the number 1288913990 from the Numbermatics database.
Names of 1288913990
- Cardinal: 1288913990 can be written as One billion, two hundred eighty-eight million, nine hundred thirteen thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.28891399 × 109
Factors of 1288913990
Divisors of 1288913990
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 5 7 10 13 14 17 26 29 34 35 58 65 70 85 91 119 130 145 169 170 182 203 221 238 289 290 338 377 406 442 455 493 578 595 754 845 910 986 1015 1105 1183 1190 1445 1547 1690 1885 2023 2030 2197 2210 2366 2465 2639 2873 2890 3094 3451 3757 3770 4046 4394 4901 4930 5278 5746 5915 6409 6902 7514 7735 8381 9802 10115 10985 11830 12818 13195 14365 15379 15470 16762 17255 18785 20111 20230 21970 24505 26299 26390 28730 30758 32045 34307 34510 37349 37570 40222 41905 44863 48841 49010 52598 58667 63713 64090 68614 74698 76895 83317 83810 89726 97682 100555 108953 117334 127426 131495 153790 166634 171535 186745 201110 217906 224315 244205 261443 262990 293335 318565 341887 343070 373490 416585 445991 448630 488410 522886 544765 583219 586670 634933 637130 683774 762671 833170 891982 1083121 1089530 1166438 1269866 1307215 1416389 1525342 1709435 2166242 2229955 2614430 2832778 2916095 3174665 3418870 3813355 4444531 4459910 5415605 5832190 6349330 7081945 7581847 7626710 8889062 9914723 10831210 14163890 15163694 18413057 19829446 22222655 36826114 37909235 44445310 49573615 75818470 92065285 99147230 128891399 184130570 257782798 644456995 1288913990
- Sum of all divisors σ(n): 3156451200
- Sum of proper divisors (its aliquot sum) s(n): 1867537210
- 1288913990 is an abundant number, because the sum of its proper divisors (1867537210) is greater than itself. Its abundance is 578623220
Bases of 1288913990
- Binary: 10011001101001101000100010001102
- Hexadecimal: 0x4CD34446
- Base-36: LBDWEE
Squares and roots of 1288913990
- 1288913990 squared (12889139902) is 1661299273617720100
- 1288913990 cubed (12889139903) is 2141271875342717348794199000
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The
square root of 1288913990 is 35901.4482994767 -
The
cube root of 1288913990 is 1088.2816653565
Scales and comparisons
How big is 1288913990?- 1,288,913,990 seconds is equal to 40 years, 51 weeks, 23 hours, 39 minutes, 50 seconds.
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To count from 1 to 1,288,913,990 would take you about eighty-one 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 1288913990 cubic inches would be around 90.7 feet tall.
Recreational maths with 1288913990
- 1288913990 backwards is 0993198821
- The number of decimal digits it has is: 10
- The sum of 1288913990's digits is 50
- More coming soon!
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