138685329408

Names of 138685329408

• Cardinal: 138685329408 can be written as One hundred thirty-eight billion, six hundred eighty-five million, three hundred twenty-nine thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.38685329408 × 10¹¹

Factors of 138685329408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 788

Divisors of 138685329408

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 97 128 192 194 256 291 307 379 384 388 512 582 614 758 768 776 921 1024 1137 1164 1228 1516 1536 1552 1842 2048 2274 2328 2456 3032 3072 3104 3684 4096 4548 4656 4912 6064 6144 6208 7368 9096 9312 9824 12128 12288 12416 14736 18192 18624 19648 24256 24832 29472 29779 36384 36763 37248 39296 48512 49664 58944 59558 72768 73526 74496 78592 89337 97024 99328 110289 116353 117888 119116 145536 147052 148992 157184 178674 194048 198656 220578 232706 235776 238232 291072 294104 297984 314368 349059 357348 388096 397312 441156 465412 471552 476464 582144 588208 595968 628736 698118 714696 776192 882312 930824 943104 952928 1164288 1176416 1191936 1257472 1396236 1429392 1552384 1764624 1861648 1886208 1905856 2328576 2352832 2792472 2858784 3529248 3723296 3772416 3811712 4657152 4705664 5584944 5717568 7058496 7446592 7623424 9411328 11169888 11286241 11435136 14116992 14893184 15246848 18822656 22339776 22572482 22870272 28233984 29786368 30493696 33858723 37645312 44679552 45144964 45740544 56467968 59572736 60987392 67717446 75290624 89359104 90289928 91481088 112935936 119145472 121974784 135434892 150581248 178718208 180579856 182962176 225871872 238290944 270869784 357436416 361159712 365924352 451743744 476581888 541739568 714872832 722319424 1083479136 1429745664 1444638848 2166958272 2889277696 4333916544 5778555392 8667833088 11557110784 17335666176 23114221568 34671332352 46228443136 69342664704 138685329408
• Sum of all divisors σ(n): 375800458880
• Sum of proper divisors (its aliquot sum) s(n): 237115129472
• 138685329408 is an abundant number, because the sum of its proper divisors (237115129472) is greater than itself. Its abundance is 98429800064

Bases of 138685329408

• Binary: 10000001001010010010100011000000000000₂
• Hexadecimal: 0x204A4A3000
• Base-36: 1RPLNX1C

Squares and roots of 138685329408

• 138685329408 squared (138685329408²) is 19233620593005469630464
• 138685329408 cubed (138685329408³) is 2667421007649455856446639871885312
• The square root of 138685329408 is 372404.7924074017
• The cube root of 138685329408 is 5176.1895796793

Scales and comparisons

• 138,685,329,408 seconds is equal to 4,409 years, 39 weeks, 5 days, 6 hours, 36 minutes, 48 seconds.
• To count from 1 to 138,685,329,408 would take you about eight thousand, eight hundred nineteen 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 138685329408 cubic inches would be around 431.3 feet tall.

Recreational maths with 138685329408

• 138685329408 backwards is 804923586831
• The number of decimal digits it has is: 12
• The sum of 138685329408's digits is 57
• More coming soon!