138303638820

Names of 138303638820

• Cardinal: 138303638820 can be written as One hundred thirty-eight billion, three hundred three million, six hundred thirty-eight thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.3830363882 × 10¹¹

Factors of 138303638820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 13480

Divisors of 138303638820

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 241 482 723 964 1205 1446 2169 2410 2892 3615 4338 4820 7230 8676 10845 13229 14460 21690 26458 39687 43380 52916 58081 66145 79374 116162 119061 132290 158748 174243 198435 232324 238122 264580 290405 348486 396870 476244 522729 580810 595305 696972 793740 871215 1045458 1161620 1190610 1742430 2090916 2381220 2613645 3188189 3484860 5227290 6376378 9564567 10454580 12752756 15940945 19129134 28693701 31881890 38258268 47822835 57387402 63763780 95645670 114774804 143468505 191291340 286937010 573874020 768353549 1536707098 2305060647 3073414196 3841767745 4610121294 6915181941 7683535490 9220242588 11525303235 13830363882 15367070980 23050606470 27660727764 34575909705 46101212940 69151819410 138303638820
• Sum of all divisors σ(n): 421300856340
• Sum of proper divisors (its aliquot sum) s(n): 282997217520
• 138303638820 is an abundant number, because the sum of its proper divisors (282997217520) is greater than itself. Its abundance is 144693578700

Bases of 138303638820

• Binary: 10000000110011100010100000110100100100₂
• Hexadecimal: 0x20338A0D24
• Base-36: 1RJAEYP0

Squares and roots of 138303638820

• 138303638820 squared (138303638820²) is 19127896510853010992400
• 138303638820 cubed (138303638820³) is 2645457690423353042402379364968000
• The square root of 138303638820 is 371891.9719757339
• The cube root of 138303638820 is 5171.4365700115

Scales and comparisons

• 138,303,638,820 seconds is equal to 4,397 years, 32 weeks, 4 days, 13 hours, 27 minutes.
• To count from 1 to 138,303,638,820 would take you about eight thousand, seven hundred ninety-five 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 138303638820 cubic inches would be around 431 feet tall.

Recreational maths with 138303638820

• 138303638820 backwards is 028836303831
• 138303638820 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138303638820's digits is 45
• More coming soon!