138278015920

Names of 138278015920

• Cardinal: 138278015920 can be written as One hundred thirty-eight billion, two hundred seventy-eight million, fifteen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.3827801592 × 10¹¹

Factors of 138278015920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 428

Divisors of 138278015920

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 40 44 55 61 80 88 110 121 122 176 220 242 244 305 349 440 484 488 605 610 671 698 880 968 976 1210 1220 1331 1342 1396 1745 1936 2420 2440 2662 2684 2792 3355 3490 3721 3839 4840 4880 5324 5368 5584 6655 6710 6980 7381 7442 7678 9680 10648 10736 13310 13420 13960 14762 14884 15356 18605 19195 21289 21296 26620 26840 27920 29524 29768 30712 36905 37210 38390 40931 42229 42578 53240 53680 59048 59536 61424 73810 74420 76780 81191 81862 84458 85156 106445 106480 118096 147620 148840 153560 162382 163724 168916 170312 204655 211145 212890 234179 295240 297680 307120 324764 327448 337832 340624 405955 409310 422290 425780 450241 464519 468358 590480 649528 654896 675664 811910 818620 844580 851560 900482 929038 936716 1170895 1298629 1299056 1623820 1637240 1689160 1703120 1800964 1858076 1873432 2251205 2322595 2341790 2575969 2597258 3247640 3274480 3378320 3601928 3716152 3746864 4502410 4645190 4683580 4952651 5151938 5194516 6493145 6495280 7203856 7432304 9004820 9290380 9367160 9905302 10303876 10389032 12879845 12986290 14284919 18009640 18580760 18734320 19810604 20607752 20778064 24763255 25759690 25972580 28335659 28569838 36019280 37161520 39621208 41215504 49526510 51519380 51945160 56671318 57139676 71424595 79242416 99053020 103038760 103890320 113342636 114279352 141678295 142849190 157134109 198106040 206077520 226685272 228558704 283356590 285698380 314268218 396212080 453370544 566713180 571396760 628536436 785670545 1133426360 1142793520 1257072872 1571341090 1728475199 2266852720 2514145744 3142682180 3456950398 6285364360 6913900796 8642375995 12570728720 13827801592 17284751990 27655603184 34569503980 69139007960 138278015920
• Sum of all divisors σ(n): 360544111200
• Sum of proper divisors (its aliquot sum) s(n): 222266095280
• 138278015920 is an abundant number, because the sum of its proper divisors (222266095280) is greater than itself. Its abundance is 83988079360

Bases of 138278015920

• Binary: 10000000110010000000110001001110110000₂
• Hexadecimal: 0x20320313B0
• Base-36: 1RIV5RXS

Squares and roots of 138278015920

• 138278015920 squared (138278015920²) is 19120809686771773446400
• 138278015920 cubed (138278015920³) is 2643987626270717502027932466688000
• The square root of 138278015920 is 371857.5209942647
• The cube root of 138278015920 is 5171.1171872699

Scales and comparisons

• 138,278,015,920 seconds is equal to 4,396 years, 42 weeks, 1 day, 23 hours, 58 minutes, 40 seconds.
• To count from 1 to 138,278,015,920 would take you about eight thousand, seven hundred ninety-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 138278015920 cubic inches would be around 430.9 feet tall.

Recreational maths with 138278015920

• 138278015920 backwards is 029510872831
• The number of decimal digits it has is: 12
• The sum of 138278015920's digits is 46
• More coming soon!