138639021248

Names of 138639021248

• Cardinal: 138639021248 can be written as One hundred thirty-eight billion, six hundred thirty-nine million, twenty-one thousand, two hundred forty-eight.

Scientific notation

• Scientific notation: 1.38639021248 × 10¹¹

Factors of 138639021248

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 73757

Divisors of 138639021248

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 19 26 28 32 34 38 52 56 64 68 76 91 104 112 119 133 136 152 182 208 221 224 238 247 266 272 304 323 364 416 442 448 476 494 532 544 608 646 728 832 884 952 988 1064 1088 1216 1292 1456 1547 1729 1768 1904 1976 2128 2261 2584 2912 3094 3458 3536 3808 3952 4199 4256 4522 5168 5824 6188 6916 7072 7616 7904 8398 8512 9044 10336 12376 13832 14144 15808 16796 18088 20672 24752 27664 29393 33592 36176 49504 55328 58786 67184 72352 73699 99008 110656 117572 134368 144704 147398 235144 268736 294796 470288 515893 589592 940576 958087 1031786 1179184 1252883 1400281 1881152 1916174 2063572 2358368 2505766 2800562 3832348 4127144 4716736 5011532 5601124 6706609 7664696 8254288 8770181 9801967 10023064 11202248 13413218 15329392 16287479 16508576 17540362 18203653 19603934 20046128 22404496 23804777 26826436 30658784 32574958 33017152 35080724 36407306 39207868 40092256 44808992 47609554 53652872 61317568 65149916 70161448 72814612 78415736 80184512 89617984 95219108 107305744 114012353 127425571 130299832 140322896 145629224 156831472 166633439 190438216 214611488 228024706 254851142 260599664 280645792 291258448 309462101 313662944 333266878 380876432 429222976 456049412 509702284 521199328 561291584 582516896 618924202 627325888 666533756 761752864 912098824 1019404568 1042398656 1165033792 1237848404 1333067512 1523505728 1824197648 2038809136 2166234707 2475696808 2666135024 3648395296 4077618272 4332469414 4951393616 5332270048 7296790592 8155236544 8664938828 9902787232 10664540096 17329877656 19805574464 34659755312 69319510624 138639021248
• Sum of all divisors σ(n): 377391168000
• Sum of proper divisors (its aliquot sum) s(n): 238752146752
• 138639021248 is an abundant number, because the sum of its proper divisors (238752146752) is greater than itself. Its abundance is 100113125504

Bases of 138639021248

• Binary: 10000001000111100001111001010011000000₂
• Hexadecimal: 0x20478794C0
• Base-36: 1ROU3DFK

Squares and roots of 138639021248

• 138639021248 squared (138639021248²) is 19220778212603395477504
• 138639021248 cubed (138639021248³) is 2664749879020217607002624162004992
• The square root of 138639021248 is 372342.6127211335
• The cube root of 138639021248 is 5175.6133916031

Scales and comparisons

• 138,639,021,248 seconds is equal to 4,408 years, 15 weeks, 1 day, 7 hours, 14 minutes, 8 seconds.
• To count from 1 to 138,639,021,248 would take you about eight thousand, eight hundred sixteen 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 138639021248 cubic inches would be around 431.3 feet tall.

Recreational maths with 138639021248

• 138639021248 backwards is 842120936831
• The number of decimal digits it has is: 12
• The sum of 138639021248's digits is 47
• More coming soon!