138803280

Names of 138803280

• Cardinal: 138803280 can be written as One hundred thirty-eight million, eight hundred three thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3880328 × 10⁸

Factors of 138803280

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 94

Divisors of 138803280

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 29 30 33 35 37 40 42 44 48 49 55 56 58 60 66 70 74 77 80 84 87 88 98 105 110 111 112 116 120 132 140 145 147 148 154 165 168 174 176 185 196 203 210 220 222 231 232 240 245 259 264 280 290 294 296 308 319 330 336 348 370 385 392 406 407 420 435 440 444 462 464 490 518 528 539 555 560 580 588 592 609 616 638 660 696 735 740 770 777 784 812 814 840 870 880 888 924 957 980 1015 1036 1073 1078 1110 1155 1160 1176 1218 1221 1232 1276 1295 1320 1392 1421 1470 1480 1540 1554 1595 1617 1624 1628 1680 1740 1776 1813 1848 1914 1960 2030 2035 2072 2146 2156 2220 2233 2310 2320 2352 2436 2442 2552 2590 2640 2695 2842 2849 2940 2960 3045 3080 3108 3190 3219 3234 3248 3256 3480 3626 3696 3828 3885 3920 4060 4070 4144 4263 4292 4312 4440 4466 4620 4785 4872 4884 5104 5180 5365 5390 5439 5684 5698 5880 6090 6105 6160 6216 6380 6438 6468 6512 6699 6960 7105 7252 7511 7656 7770 8085 8120 8140 8526 8547 8584 8624 8880 8932 9065 9240 9570 9744 9768 10360 10730 10780 10878 11165 11368 11396 11760 11803 12180 12210 12432 12760 12876 12936 13398 14210 14245 14504 15022 15312 15540 15631 16095 16170 16240 16280 17052 17094 17168 17864 18130 18480 19140 19536 19943 20720 21315 21460 21560 21756 22330 22533 22736 22792 23606 24360 24420 25520 25752 25872 26796 27195 28420 28490 29008 30044 31080 31262 32190 32340 32560 33495 34104 34188 35409 35728 36260 37555 38280 39886 42630 42735 42920 43120 43512 44660 45066 45584 46893 47212 48720 48840 51504 52577 53592 54390 56840 56980 59015 59829 60088 62160 62524 64380 64680 66990 68208 68376 70818 72520 75110 76560 78155 79772 82621 85260 85470 85840 87024 89320 90132 93786 94424 97680 99715 105154 107184 108780 112665 113680 113960 118030 119658 120176 125048 128760 129360 133980 136752 141636 145040 150220 156310 157731 159544 165242 170520 170940 177045 178640 180264 187572 188848 199430 210308 217560 225330 227920 234465 236060 239316 247863 250096 257520 262885 267960 283272 299145 300440 312620 315462 319088 330484 341040 341880 354090 360528 375144 398860 413105 420616 435120 450660 468930 472120 478632 495726 525770 535920 566544 578347 598290 600880 625240 630924 660968 683760 708180 750288 788655 797720 826210 841232 901320 937860 944240 957264 991452 1051540 1156694 1196580 1239315 1250480 1261848 1321936 1416360 1577310 1595440 1652420 1735041 1802640 1875720 1982904 2103080 2313388 2393160 2478630 2523696 2832720 2891735 3154620 3304840 3470082 3751440 3965808 4206160 4626776 4786320 4957260 5783470 6309240 6609680 6940164 8675205 9253552 9914520 11566940 12618480 13880328 17350410 19829040 23133880 27760656 34700820 46267760 69401640 138803280
• Sum of all divisors σ(n): 580141440
• Sum of proper divisors (its aliquot sum) s(n): 441338160
• 138803280 is an abundant number, because the sum of its proper divisors (441338160) is greater than itself. Its abundance is 302534880

Bases of 138803280

• Binary: 1000010001011111100001010000₂
• Hexadecimal: 0x845F850
• Base-36: 2AN1AO

Squares and roots of 138803280

• 138803280 squared (138803280²) is 19266350538758400
• 138803280 cubed (138803280³) is 2674232648409433047552000
• The square root of 138803280 is 11781.4803823629
• The cube root of 138803280 is 517.7656597675

Scales and comparisons

• 138,803,280 seconds is equal to 4 years, 21 weeks, 3 days, 12 hours, 28 minutes.
• To count from 1 to 138,803,280 would take you about six 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 138803280 cubic inches would be around 43.1 feet tall.

Recreational maths with 138803280

• 138803280 backwards is 082308831
• 138803280 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138803280's digits is 33
• More coming soon!