31389331428
31,389,331,428 is an even composite number composed of seven prime numbers multiplied together.
31389331428 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 31389331428:
22 × 32 × 7 × 13 × 67 × 83 × 1723
(2 × 2 × 3 × 3 × 7 × 13 × 67 × 83 × 1723)See below for interesting mathematical facts about the number 31389331428 from the Numbermatics database.
Names of 31389331428
- Cardinal: 31389331428 can be written as Thirty-one billion, three hundred eighty-nine million, three hundred thirty-one thousand, four hundred twenty-eight.
Scientific notation
- Scientific notation: 3.1389331428 × 1010
Factors of 31389331428
Divisors of 31389331428
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 67 78 83 84 91 117 126 134 156 166 182 201 234 249 252 268 273 332 364 402 468 469 498 546 581 603 747 804 819 871 938 996 1079 1092 1162 1206 1407 1494 1638 1723 1742 1743 1876 2158 2324 2412 2613 2814 2988 3237 3276 3446 3484 3486 4221 4316 5169 5226 5229 5561 5628 6097 6474 6892 6972 7553 7839 8442 9711 10338 10452 10458 11122 12061 12194 12948 15106 15507 15678 16683 16884 18291 19422 20676 20916 22244 22399 22659 24122 24388 30212 31014 31356 33366 36183 36582 38844 38927 44798 45318 48244 50049 54873 62028 66732 67197 67977 72293 72366 73164 77854 89596 90636 100098 108549 109746 115441 116781 134394 135954 143009 144586 144732 155708 156793 200196 201591 216879 217098 219492 230882 233562 268788 271908 286018 289172 313586 346323 350343 403182 429027 433758 434196 461764 467124 470379 506051 572036 627172 650637 692646 700686 806364 808087 858054 867516 940758 1001063 1012102 1038969 1287081 1301274 1385292 1401372 1411137 1500733 1518153 1616174 1716108 1859117 1881516 2002126 2024204 2077938 2424261 2574162 2602548 2822274 3001466 3003189 3036306 3232348 3718234 4004252 4155876 4502199 4554459 4848522 5148324 5577351 5644548 6002932 6006378 6072612 7272783 7436468 9004398 9009567 9108918 9581603 9697044 10505131 11154702 12012756 13013819 13506597 14545566 16732053 18008796 18019134 18217836 19163206 21010262 22309404 26027638 27013194 28744809 29091132 31515393 33464106 36038268 38326412 39041457 42020524 52055276 54026388 57489618 63030786 66928212 67071221 78082914 86234427 94546179 114979236 117124371 124560839 126061572 134142442 156165828 172468854 189092358 201213663 234248742 249121678 268284884 344937708 373682517 378184716 402427326 468497484 498243356 603640989 747365034 804854652 871925873 1121047551 1207281978 1494730068 1743851746 2242095102 2414563956 2615777619 3487703492 4484190204 5231555238 7847332857 10463110476 15694665714 31389331428
- Sum of all divisors σ(n): 100365597696
- Sum of proper divisors (its aliquot sum) s(n): 68976266268
- 31389331428 is an abundant number, because the sum of its proper divisors (68976266268) is greater than itself. Its abundance is 37586934840
Bases of 31389331428
- Binary: 111010011101111001100101111111001002
- Hexadecimal: 0x74EF32FE4
- Base-36: EF4EB50
Squares and roots of 31389331428
- 31389331428 squared (313893314282) is 985290127496828519184
- 31389331428 cubed (313893314283) is 30927598364734326407549032114752
-
The
square root of 31389331428 is 177170.3457918395 -
The
cube root of 31389331428 is 3154.4769272889
Scales and comparisons
How big is 31389331428?- 31,389,331,428 seconds is equal to 998 years, 4 weeks, 2 days, 10 hours, 43 minutes, 48 seconds.
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To count from 1 to 31,389,331,428 would take you about one thousand, nine hundred ninety-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 31389331428 cubic inches would be around 262.9 feet tall.
Recreational maths with 31389331428
- 31389331428 backwards is 82413398313
- The number of decimal digits it has is: 11
- The sum of 31389331428's digits is 45
- More coming soon!
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