3938634998640

Names of 3938634998640

• Cardinal: 3938634998640 can be written as Three trillion, nine hundred thirty-eight billion, six hundred thirty-four million, nine hundred ninety-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.93863499864 × 10¹²

Factors of 3938634998640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1406

Divisors of 3938634998640

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 243 270 324 360 405 432 467 486 540 648 720 810 929 934 972 1080 1215 1296 1401 1620 1858 1868 1944 2160 2335 2430 2787 2802 3240 3716 3736 3888 4203 4645 4670 4860 5574 5604 6480 7005 7432 7472 8361 8406 9290 9340 9720 11148 11208 12609 13935 14010 14864 16722 16812 18580 18680 19440 21015 22296 22416 25083 25218 27870 28020 33444 33624 37160 37360 37827 41805 42030 44592 50166 50436 55740 56040 63045 66888 67248 74320 75249 75654 83610 84060 100332 100872 111480 112080 113481 125415 126090 133776 150498 151308 167220 168120 189135 200664 201744 218089 222960 225747 226962 250830 252180 300996 302616 334440 336240 376245 378270 401328 433843 436178 451494 453924 501660 504360 567405 601992 605232 654267 668880 752490 756540 867686 872356 902988 907848 1003320 1008720 1090445 1128735 1134810 1203984 1301529 1308534 1504980 1513080 1735372 1744712 1805976 1815696 1962801 2006640 2169215 2180890 2257470 2269620 2603058 2617068 3009960 3026160 3271335 3470744 3489424 3611952 3904587 3925602 4338430 4361780 4514940 4539240 5206116 5234136 5888403 6019920 6507645 6542670 6941488 7809174 7851204 8676860 8723560 9029880 9078480 9814005 10412232 10468272 11713761 11776806 13015290 13085340 15618348 15702408 17353720 17447120 17665209 18059760 19522935 19628010 20824464 23427522 23553612 26030580 26170680 29442015 31236696 31404816 34707440 35141283 35330418 39045870 39256020 46855044 47107224 52061160 52341360 52995627 58568805 58884030 62473392 70282566 70660836 78091740 78512040 88326045 93710088 94214448 104122320 105423849 105991254 117137610 117768060 140565132 141321672 156183480 157024080 175706415 176652090 187420176 202604681 210847698 211982508 234275220 235536120 264978135 281130264 282643344 312366960 351412830 353304180 405209362 421695396 423965016 468550440 471072240 527119245 529956270 562260528 607814043 702825660 706608360 810418724 843390792 847930032 937100880 1013023405 1054238490 1059912540 1215628086 1405651320 1413216720 1620837448 1686781584 1823442129 2026046810 2108476980 2119825080 2431256172 2811302640 3039070215 3241674896 3646884258 4052093620 4216953960 4239650160 4862512344 5470326387 6078140430 7293768516 8104187240 8433907920 9117210645 9725024688 10940652774 12156280860 14587537032 16208374480 16410979161 18234421290 21881305548 24312561720 27351631935 29175074064 32821958322 36468842580 43762611096 48625123440 49232937483 54703263870 65643916644 72937685160 82054895805 87525222192 98465874966 109406527740 131287833288 145875370320 164109791610 196931749932 218813055480 246164687415 262575666576 328219583220 393863499864 437626110960 492329374830 656439166440 787726999728 984658749660 1312878332880 1969317499320 3938634998640
• Sum of all divisors σ(n): 13761380309040
• Sum of proper divisors (its aliquot sum) s(n): 9822745310400
• 3938634998640 is an abundant number, because the sum of its proper divisors (9822745310400) is greater than itself. Its abundance is 5884110311760

Bases of 3938634998640

• Binary: 111001010100001000111100001010001101110000₂
• Hexadecimal: 0x39508F0A370
• Base-36: 1E9DTL300

Squares and roots of 3938634998640

• 3938634998640 squared (3938634998640²) is 15512845652511912801849600
• 3938634998640 cubed (3938634998640³) is 61099436815483787590896697885484544000
• The square root of 3938634998640 is 1984599.4554670219
• The cube root of 3938634998640 is 15792.4161096601

Scales and comparisons

• 3,938,634,998,640 seconds is equal to 125,236 years, 21 weeks, 2 days, 5 hours, 24 minutes.
• To count from 1 to 3,938,634,998,640 would take you about three hundred thirteen thousand and ninety-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 3938634998640 cubic inches would be around 1316 feet tall.

Recreational maths with 3938634998640

• 3938634998640 backwards is 0468994368393
• 3938634998640 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 3938634998640's digits is 72
• More coming soon!