138415806380

Names of 138415806380

• Cardinal: 138415806380 can be written as One hundred thirty-eight billion, four hundred fifteen million, eight hundred six thousand, three hundred eighty.

Scientific notation

• Scientific notation: 1.3841580638 × 10¹¹

Factors of 138415806380

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 19793

Divisors of 138415806380

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 20 37 61 74 122 148 157 185 244 305 314 370 610 628 740 785 1220 1570 2257 3140 4514 5809 9028 9577 11285 11618 19154 19531 22570 23236 29045 38308 39062 45140 47885 58090 78124 95770 97655 116180 191540 195310 354349 390620 708698 722647 1191391 1417396 1445294 1771745 2382782 2890588 3066367 3543490 3613235 4765564 5956955 6132734 7086980 7226470 11913910 12265468 14452940 15331835 23827820 30663670 44081467 61327340 88162934 113455579 176325868 187048387 220407335 226911158 374096774 440814670 453822316 567277895 748193548 881629340 935241935 1134555790 1870483870 2269111580 3740967740 6920790319 13841580638 27683161276 34603951595 69207903190 138415806380
• Sum of all divisors σ(n): 305371413312
• Sum of proper divisors (its aliquot sum) s(n): 166955606932
• 138415806380 is an abundant number, because the sum of its proper divisors (166955606932) is greater than itself. Its abundance is 28539800552

Bases of 138415806380

• Binary: 10000000111010001110011001011110101100₂
• Hexadecimal: 0x203A3997AC
• Base-36: 1RL573QK

Squares and roots of 138415806380

• 138415806380 squared (138415806380²) is 19158935455825648704400
• 138415806380 cubed (138415806380³) is 2651899500500480034106128254072000
• The square root of 138415806380 is 372042.7480545751
• The cube root of 138415806380 is 5172.8342451585

Scales and comparisons

• 138,415,806,380 seconds is equal to 4,401 years, 10 weeks, 19 hours, 6 minutes, 20 seconds.
• To count from 1 to 138,415,806,380 would take you about eight thousand, eight hundred two 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 138415806380 cubic inches would be around 431.1 feet tall.

Recreational maths with 138415806380

• 138415806380 backwards is 083608514831
• The number of decimal digits it has is: 12
• The sum of 138415806380's digits is 47
• More coming soon!