31991398912
31,991,398,912 is an even composite number composed of four prime numbers multiplied together.
What does the number 31991398912 look like?
This visualization shows the relationship between its 4 prime factors (large circles) and 120 divisors.
31991398912 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 31991398912:
29 × 11 × 1312 × 331
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 11 × 131 × 131 × 331)See below for interesting mathematical facts about the number 31991398912 from the Numbermatics database.
Names of 31991398912
- Cardinal: 31991398912 can be written as Thirty-one billion, nine hundred ninety-one million, three hundred ninety-eight thousand, nine hundred twelve.
Scientific notation
- Scientific notation: 3.1991398912 × 1010
Factors of 31991398912
Divisors of 31991398912
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 4 8 11 16 22 32 44 64 88 128 131 176 256 262 331 352 512 524 662 704 1048 1324 1408 1441 2096 2648 2816 2882 3641 4192 5296 5632 5764 7282 8384 10592 11528 14564 16768 17161 21184 23056 29128 33536 34322 42368 43361 46112 58256 67072 68644 84736 86722 92224 116512 137288 169472 173444 184448 188771 233024 274576 346888 368896 377542 466048 476971 549152 693776 737792 755084 932096 953942 1098304 1387552 1510168 1864192 1907884 2196608 2775104 3020336 3815768 4393216 5550208 5680291 6040672 7631536 8786432 11100416 11360582 12081344 15263072 22200832 22721164 24162688 30526144 45442328 48325376 61052288 62483201 90884656 96650752 122104576 124966402 181769312 244209152 249932804 363538624 499865608 727077248 999731216 1454154496 1999462432 2908308992 3998924864 7997849728 15995699456 31991398912
- Sum of all divisors σ(n): 70479904176
- Sum of proper divisors (its aliquot sum) s(n): 38488505264
- 31991398912 is an abundant number, because the sum of its proper divisors (38488505264) is greater than itself. Its abundance is 6497106352
Bases of 31991398912
- Binary: 111011100101101011000000010000000002
- Hexadecimal: 0x772D60200
- Base-36: EP2UPDS
Squares and roots of 31991398912
- 31991398912 squared (319913989122) is 1023449604346714783744
- 31991398912 cubed (319913989123) is 32741584558984321803442116886528
-
The
square root of 31991398912 is 178861.3958125117 -
The
cube root of 31991398912 is 3174.5176331115
Scales and comparisons
How big is 31991398912?- 31,991,398,912 seconds is equal to 1,017 years, 11 weeks, 5 days, 19 hours, 41 minutes, 52 seconds.
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To count from 1 to 31,991,398,912 would take you about two thousand and thirty-four 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 31991398912 cubic inches would be around 264.5 feet tall.
Recreational maths with 31991398912
- 31991398912 backwards is 21989319913
- The number of decimal digits it has is: 11
- The sum of 31991398912's digits is 55
- More coming soon!
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