138738780240

Names of 138738780240

• Cardinal: 138738780240 can be written as One hundred thirty-eight billion, seven hundred thirty-eight million, seven hundred eighty thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.3873878024 × 10¹¹

Factors of 138738780240

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2800

Divisors of 138738780240

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 23 24 30 34 40 46 48 51 60 68 69 80 85 92 102 115 120 136 138 170 184 204 230 240 255 272 276 340 345 368 391 408 460 510 552 680 690 733 782 816 920 1020 1104 1173 1360 1380 1466 1564 1840 1955 2017 2040 2199 2346 2760 2932 3128 3665 3910 4034 4080 4398 4692 5520 5864 5865 6051 6256 7330 7820 8068 8796 9384 10085 10995 11728 11730 12102 12461 14660 15640 16136 16859 17592 18768 20170 21990 23460 24204 24922 29320 30255 31280 32272 33718 34289 35184 37383 40340 43980 46391 46920 48408 49844 50577 58640 60510 62305 67436 68578 74766 80680 84295 87960 92782 93840 96816 99688 101154 102867 121020 124610 134872 137156 139173 149532 161360 168590 171445 175920 185564 186915 199376 202308 205734 231955 242040 249220 252885 269744 274312 278346 286603 299064 337180 342890 371128 373830 404616 411468 463910 484080 498440 505770 514335 548624 556692 573206 598128 674360 685780 695865 742256 747660 788647 809232 822936 859809 927820 996880 1011540 1028670 1113384 1146412 1348720 1371560 1391730 1433015 1478461 1495320 1577294 1645872 1719618 1855640 2023080 2057340 2226768 2292824 2365941 2743120 2783460 2866030 2956922 2990640 3154588 3439236 3711280 3943235 4046160 4114680 4299045 4435383 4585648 4731882 5566920 5732060 5913844 6309176 6878472 7392305 7886470 8229360 8598090 8870766 9463764 11133840 11464120 11827688 11829705 12618352 13756944 14784610 15772940 17196180 17741532 18927528 22176915 22928240 23655376 23659410 25133837 29569220 31545880 34004603 34392360 35483064 37855056 44353830 47318820 50267674 59138440 63091760 68009206 68784720 70966128 75401511 88707660 94637640 100535348 102013809 118276880 125669185 136018412 150803022 170023015 177415320 189275280 201070696 204027618 251338370 272036824 301606044 340046030 354830640 377007555 402141392 408055236 502676740 510069045 544073648 578078251 603212088 680092060 754015110 816110472 1005353480 1020138090 1156156502 1206424176 1360184120 1508030220 1632220944 1734234753 2010706960 2040276180 2312313004 2720368240 2890391255 3016060440 3468469506 4080552360 4624626008 5780782510 6032120880 6936939012 8161104720 8671173765 9249252016 11561565020 13873878024 17342347530 23123130040 27747756048 34684695060 46246260080 69369390120 138738780240
• Sum of all divisors σ(n): 476073386496
• Sum of proper divisors (its aliquot sum) s(n): 337334606256
• 138738780240 is an abundant number, because the sum of its proper divisors (337334606256) is greater than itself. Its abundance is 198595826016

Bases of 138738780240

• Binary: 10000001001101011110011100100001010000₂
• Hexadecimal: 0x204D79C850
• Base-36: 1RQHHJYO

Squares and roots of 138738780240

• 138738780240 squared (138738780240²) is 19248449142483014457600
• 138738780240 cubed (138738780240³) is 2670506355539767390765709197824000
• The square root of 138738780240 is 372476.5499195889
• The cube root of 138738780240 is 5176.8544808247

Scales and comparisons

• 138,738,780,240 seconds is equal to 4,411 years, 24 weeks, 22 hours, 4 minutes.
• To count from 1 to 138,738,780,240 would take you about eight thousand, eight hundred twenty-two 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 138738780240 cubic inches would be around 431.4 feet tall.

Recreational maths with 138738780240

• 138738780240 backwards is 042087837831
• 138738780240 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138738780240's digits is 51
• More coming soon!