138038994940

Names of 138038994940

• Cardinal: 138038994940 can be written as One hundred thirty-eight billion, thirty-eight million, nine hundred ninety-four thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.3803899494 × 10¹¹

Factors of 138038994940

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 478

Divisors of 138038994940

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 10 11 14 19 20 22 28 35 38 44 55 70 76 77 95 110 121 127 133 140 154 190 209 220 242 254 266 307 308 380 385 418 484 508 532 605 614 635 665 770 836 847 889 1045 1210 1228 1270 1330 1331 1397 1463 1535 1540 1694 1778 2090 2149 2299 2413 2420 2540 2660 2662 2794 2926 3070 3377 3388 3556 4180 4235 4298 4445 4598 4826 5324 5588 5833 5852 6140 6655 6754 6985 7315 8470 8596 8890 9196 9317 9652 9779 10745 11495 11666 12065 13310 13508 13970 14630 15367 16093 16885 16891 16940 17780 18634 19558 21490 22990 23332 23639 24130 25289 26543 26620 27940 29165 29260 30734 32186 33770 33782 37147 37268 38989 39116 40831 42980 45980 46585 47278 48260 48895 50578 53086 58330 61468 64163 64372 67540 67564 74294 76835 77978 80465 81662 84455 93170 94556 97790 101156 106172 107569 116660 118195 126445 128326 132715 148588 153670 155956 160930 163324 168910 169037 177023 185735 185801 186340 194945 195580 204155 215138 236390 252890 256652 260029 265430 272923 291973 307340 320815 321860 337820 338074 354046 371470 371602 389890 408310 408617 428879 430276 449141 472780 505780 520058 530860 537845 545846 583946 641630 676148 705793 708092 740791 742940 743204 779780 816620 817234 845185 857758 885115 898282 929005 1040116 1075690 1091692 1167892 1183259 1283260 1300145 1364615 1411586 1459865 1481582 1634468 1690370 1715516 1770230 1796564 1858010 2043085 2043811 2144395 2151380 2245705 2366518 2600290 2729230 2823172 2860319 2919730 2963164 3002153 3211703 3380740 3528965 3540460 3703955 3716020 4086170 4087622 4288790 4491410 4717669 4733036 4940551 5185537 5200580 5458460 5720638 5839460 5916295 6004306 6423406 7057930 7407910 7763723 8148701 8172340 8175244 8577580 8982820 9435338 9881102 10219055 10371074 11441276 11832590 12008612 12846812 14115860 14301595 14815820 15010765 15527446 16058515 16297402 18870676 19762204 20438110 20742148 22481921 23588345 23665180 24702755 25927685 28603190 30021530 31054892 32117030 32594804 33023683 38818615 40743505 40876220 44963842 47176690 49405510 51855370 51894359 54346061 57040907 57206380 60043060 64234060 66047366 77637230 81487010 89635711 89927684 94353380 98811020 103710740 103788718 108692122 112409605 114081814 132094732 155274460 162974020 165118415 179271422 207577436 217384244 224819210 228163628 259471795 271730305 285204535 330236830 358542844 363260513 448178555 449638420 518943590 543460610 570409070 627449977 660473660 726521026 896357110 985992821 1037887180 1086921220 1140818140 1254899954 1453042052 1792714220 1816302565 1971985642 2509799908 3137249885 3632605130 3943971284 4929964105 6274499770 6901949747 7265210260 9859928210 12548999540 13803899494 19719856420 27607798988 34509748735 69019497470 138038994940
• Sum of all divisors σ(n): 387856465920
• Sum of proper divisors (its aliquot sum) s(n): 249817470980
• 138038994940 is an abundant number, because the sum of its proper divisors (249817470980) is greater than itself. Its abundance is 111778476040

Bases of 138038994940

• Binary: 10000000100011110000111110011111111100₂
• Hexadecimal: 0x2023C3E7FC
• Base-36: 1REWUQ64

Squares and roots of 138038994940

• 138038994940 squared (138038994940²) is 19054764124045345603600
• 138038994940 cubed (138038994940³) is 2630300488501988994105891645784000
• The square root of 138038994940 is 371535.9941378493
• The cube root of 138038994940 is 5168.1359509021

Scales and comparisons

• 138,038,994,940 seconds is equal to 4,389 years, 11 weeks, 13 hours, 15 minutes, 40 seconds.
• To count from 1 to 138,038,994,940 would take you about eight thousand, seven hundred seventy-eight 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 138038994940 cubic inches would be around 430.7 feet tall.

Recreational maths with 138038994940

• 138038994940 backwards is 049499830831
• The number of decimal digits it has is: 12
• The sum of 138038994940's digits is 58
• More coming soon!