138438948928

Names of 138438948928

• Cardinal: 138438948928 can be written as One hundred thirty-eight billion, four hundred thirty-eight million, nine hundred forty-eight thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38438948928 × 10¹¹

Factors of 138438948928

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 176

Divisors of 138438948928

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 4 7 8 14 16 17 23 28 32 34 46 49 56 64 68 92 98 112 119 127 136 161 184 196 224 238 254 272 322 343 368 391 392 448 476 508 544 644 686 736 782 784 833 889 952 1016 1088 1127 1288 1372 1472 1564 1568 1666 1778 1904 2032 2159 2254 2576 2737 2744 2921 3128 3136 3332 3556 3808 4064 4318 4508 5152 5474 5488 5831 5842 6223 6256 6664 7112 7616 7889 8128 8636 9016 10304 10948 10976 11662 11684 12446 12512 13328 14224 15113 15778 16129 17272 18032 19159 20447 21896 21952 23324 23368 24892 25024 26656 28448 30226 31556 32258 34544 36064 38318 40894 43561 43792 46648 46736 49657 49784 53312 56896 60452 63112 64516 69088 72128 76636 81788 87122 87584 93296 93472 99314 99568 105791 112903 120904 126224 129032 134113 138176 143129 153272 163576 174244 175168 186592 186944 198628 199136 211582 225806 241808 252448 258064 268226 274193 286258 306544 327152 347599 348488 370967 373184 397256 398272 423164 451612 483616 504896 516128 536452 548386 572516 613088 654304 695198 696976 740537 741934 790321 794512 846328 903224 967232 1001903 1032256 1072904 1096772 1145032 1226176 1308608 1390396 1393952 1481074 1483868 1580642 1589024 1692656 1806448 1919351 2003806 2145808 2193544 2290064 2433193 2596769 2780792 2787904 2962148 2967736 3161284 3178048 3385312 3612896 3838702 4007612 4291616 4387088 4580128 4866386 5193538 5532247 5561584 5924296 5935472 6306439 6322568 6770624 7225792 7677404 8015224 8583232 8774176 9160256 9732772 10387076 11064494 11123168 11848592 11870944 12612878 12645136 13435457 15354808 16030448 17032351 17548352 18177383 19465544 20774152 22128988 22246336 23697184 23741888 25225756 25290272 26870914 30709616 32060896 34064702 36354766 38931088 41548304 44145073 44257976 47394368 50451512 50580544 53741828 61419232 64121792 68129404 72709532 77862176 83096608 88290146 88515952 94048199 100903024 107483656 122838464 127241681 136258808 145419064 155724352 166193216 176580292 177031904 188096398 201806048 214967312 254483362 272517616 290838128 309015511 353160584 354063808 376192796 403612096 429934624 508966724 545035232 581676256 618031022 706321168 752385592 859869248 1017933448 1090070464 1163352512 1236062044 1412642336 1504771184 2035866896 2163108577 2472124088 2825284672 3009542368 4071733792 4326217154 4944248176 6019084736 8143467584 8652434308 9888496352 17304868616 19776992704 34609737232 69219474464 138438948928
• Sum of all divisors σ(n): 356769619200
• Sum of proper divisors (its aliquot sum) s(n): 218330670272
• 138438948928 is an abundant number, because the sum of its proper divisors (218330670272) is greater than itself. Its abundance is 79891721344

Bases of 138438948928

• Binary: 10000000111011100110101011100001000000₂
• Hexadecimal: 0x203B9AB840
• Base-36: 1RLIZ4N4

Squares and roots of 138438948928

• 138438948928 squared (138438948928²) is 19165342580289392349184
• 138438948928 cubed (138438948928³) is 2653229882660306926888837718474752
• The square root of 138438948928 is 372073.8487558619
• The cube root of 138438948928 is 5173.1225212273

Scales and comparisons

• 138,438,948,928 seconds is equal to 4,401 years, 48 weeks, 2 days, 15 hours, 35 minutes, 28 seconds.
• To count from 1 to 138,438,948,928 would take you about eight thousand, eight hundred three 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 138438948928 cubic inches would be around 431.1 feet tall.

Recreational maths with 138438948928

• 138438948928 backwards is 829849834831
• The number of decimal digits it has is: 12
• The sum of 138438948928's digits is 67
• More coming soon!