31785470990
31,785,470,990 is an even composite number composed of six prime numbers multiplied together.
31785470990 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 31785470990:
2 × 5 × 7 × 133 × 41 × 712
(2 × 5 × 7 × 13 × 13 × 13 × 41 × 71 × 71)See below for interesting mathematical facts about the number 31785470990 from the Numbermatics database.
Names of 31785470990
- Cardinal: 31785470990 can be written as Thirty-one billion, seven hundred eighty-five million, four hundred seventy thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 3.178547099 × 1010
Factors of 31785470990
Divisors of 31785470990
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 5 7 10 13 14 26 35 41 65 70 71 82 91 130 142 169 182 205 287 338 355 410 455 497 533 574 710 845 910 923 994 1066 1183 1435 1690 1846 2197 2366 2485 2665 2870 2911 3731 4394 4615 4970 5041 5330 5822 5915 6461 6929 7462 9230 10082 10985 11830 11999 12922 13858 14555 15379 18655 20377 21970 23998 25205 29110 30758 32305 34645 35287 37310 37843 40754 48503 50410 59995 64610 65533 69290 70574 75686 76895 83993 90077 97006 101885 119990 131066 153790 155987 167986 176435 180154 189215 203770 206681 242515 264901 311974 327665 352870 378430 413362 419965 450385 458731 485030 491959 529802 630539 655330 779935 839930 851929 900770 917462 983918 1033405 1091909 1261078 1324505 1446767 1559870 1703858 2066810 2183818 2293655 2459795 2649010 2686853 2893534 3152695 3443713 4259645 4587310 4919590 5373706 5459545 5963503 6305390 6395467 6887426 7233835 8519290 10919090 11075077 11927006 12790934 13434265 14467670 17218565 18807971 22150154 26868530 29817515 31977335 34437130 34929089 37615942 44768269 55375385 59635030 63954670 69858178 77525539 89536538 94039855 110750770 155051078 174645445 188079710 223841345 244503623 349290890 387627695 447682690 454078157 489007246 775255390 908156314 1222518115 2270390785 2445036230 3178547099 4540781570 6357094198 15892735495 31785470990
- Sum of all divisors σ(n): 73597749120
- Sum of proper divisors (its aliquot sum) s(n): 41812278130
- 31785470990 is an abundant number, because the sum of its proper divisors (41812278130) is greater than itself. Its abundance is 10026807140
Bases of 31785470990
- Binary: 111011001101000111111001100000011102
- Hexadecimal: 0x7668FCC0E
- Base-36: ELO8YDQ
Squares and roots of 31785470990
- 31785470990 squared (317854709902) is 1010316166056131580100
- 31785470990 cubed (317854709903) is 32113375186905193050891411299000
-
The
square root of 31785470990 is 178284.8030259449 -
The
cube root of 31785470990 is 3167.6915325161
Scales and comparisons
How big is 31785470990?- 31,785,470,990 seconds is equal to 1,010 years, 35 weeks, 2 days, 9 hours, 29 minutes, 50 seconds.
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To count from 1 to 31,785,470,990 would take you about two thousand and twenty-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 31785470990 cubic inches would be around 264 feet tall.
Recreational maths with 31785470990
- 31785470990 backwards is 09907458713
- The number of decimal digits it has is: 11
- The sum of 31785470990's digits is 53
- More coming soon!
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