18710709990
18,710,709,990 is an even composite number composed of eight prime numbers multiplied together.
18710709990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 18710709990:
2 × 3 × 5 × 7 × 19 × 23 × 31 × 6577
See below for interesting mathematical facts about the number 18710709990 from the Numbermatics database.
Names of 18710709990
- Cardinal: 18710709990 can be written as Eighteen billion, seven hundred ten million, seven hundred nine thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.871070999 × 1010
Factors of 18710709990
Divisors of 18710709990
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 5 6 7 10 14 15 19 21 23 30 31 35 38 42 46 57 62 69 70 93 95 105 114 115 133 138 155 161 186 190 210 217 230 266 285 310 322 345 399 434 437 465 483 570 589 651 665 690 713 798 805 874 930 966 1085 1178 1302 1311 1330 1426 1610 1767 1995 2139 2170 2185 2415 2622 2945 3059 3255 3534 3565 3990 4123 4278 4370 4830 4991 5890 6118 6510 6555 6577 7130 8246 8835 9177 9982 10695 12369 13110 13154 13547 14973 15295 17670 18354 19731 20615 21390 24738 24955 27094 29946 30590 32885 39462 40641 41230 45885 46039 49910 61845 65770 67735 74865 81282 91770 92078 94829 98655 123690 124963 135470 138117 149730 151271 189658 197310 203205 203887 230195 249926 276234 284487 302542 374889 406410 407774 453813 460390 474145 568974 611661 624815 690585 749778 756355 874741 907626 948290 1019435 1058897 1223322 1249630 1381170 1422435 1427209 1512710 1749482 1874445 2038870 2117794 2269065 2624223 2844870 2854418 2874149 3058305 3176691 3748890 3873853 4281627 4373705 4538130 4689401 5248446 5294485 5748298 6116610 6353382 7136045 7747706 8563254 8622447 8747410 9378802 10588970 11621559 13121115 14068203 14272090 14370745 15883455 17244894 19369265 20119043 21408135 23243118 23447005 26242230 27116971 28136406 28741490 31766910 32825807 38738530 40238086 42816270 43112235 46894010 54233942 58107795 60357129 65651614 70341015 81350913 86224470 89098619 98477421 100595215 116215590 120714258 135584855 140682030 162701826 164129035 178197238 196954842 201190430 267295857 271169710 301785645 328258070 406754565 445493095 492387105 534591714 603571290 623690333 813509130 890986190 984774210 1247380666 1336479285 1871070999 2672958570 3118451665 3742141998 6236903330 9355354995 18710709990
- Sum of all divisors σ(n): 58197934080
- Sum of proper divisors (its aliquot sum) s(n): 39487224090
- 18710709990 is an abundant number, because the sum of its proper divisors (39487224090) is greater than itself. Its abundance is 20776514100
Bases of 18710709990
- Binary: 100010110110011111011000110111001102
- Hexadecimal: 0x45B3EC6E6
- Base-36: 8LFVG86
Squares and roots of 18710709990
- 18710709990 squared (187107099902) is 350090668329885800100
- 18710709990 cubed (187107099903) is 6550444965325770855490212999000
-
The
square root of 18710709990 is 136787.0973081891 -
The
cube root of 18710709990 is 2654.7894868219
Scales and comparisons
How big is 18710709990?- 18,710,709,990 seconds is equal to 594 years, 49 weeks, 3 hours, 26 minutes, 30 seconds.
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To count from 1 to 18,710,709,990 would take you about one thousand, one hundred eighty-nine 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 18710709990 cubic inches would be around 221.2 feet tall.
Recreational maths with 18710709990
- 18710709990 backwards is 09990701781
- The number of decimal digits it has is: 11
- The sum of 18710709990's digits is 51
- More coming soon!
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