138645170040

Names of 138645170040

• Cardinal: 138645170040 can be written as One hundred thirty-eight billion, six hundred forty-five million, one hundred seventy thousand and forty.

Scientific notation

• Scientific notation: 1.3864517004 × 10¹¹

Factors of 138645170040

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1251

Divisors of 138645170040

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 31 39 40 43 52 60 61 62 65 78 86 93 104 120 122 124 129 130 155 156 172 183 186 195 215 244 248 258 260 305 310 312 344 366 372 390 403 430 465 488 516 520 559 610 620 645 732 744 780 793 806 860 915 930 1032 1093 1118 1209 1220 1240 1290 1333 1464 1560 1586 1612 1677 1720 1830 1860 1891 2015 2186 2236 2379 2418 2440 2580 2623 2666 2795 3172 3224 3279 3354 3660 3720 3782 3965 3999 4030 4372 4472 4758 4836 5160 5246 5332 5465 5590 5673 6045 6344 6558 6665 6708 7320 7564 7869 7930 7998 8060 8385 8744 9455 9516 9672 10492 10664 10930 11180 11346 11895 12090 13115 13116 13330 13416 14209 15128 15738 15860 15996 16120 16395 16770 17329 18910 19032 19995 20984 21860 22360 22692 23790 24180 24583 26230 26232 26660 28365 28418 31476 31720 31992 32790 33540 33883 34099 34658 37820 39345 39990 42627 43720 45384 46999 47580 48360 49166 51987 52460 53320 56730 56836 62952 65580 66673 67080 67766 68198 69316 71045 73749 75640 78690 79980 81313 85254 86645 93998 95160 98332 101649 102297 103974 104920 113460 113672 122915 131160 133346 135532 136396 138632 140997 142090 147498 157380 159960 162626 169415 170495 170508 173290 187996 196664 200019 203298 204594 207948 213135 226920 234995 243939 245830 259935 266692 271064 272792 281994 284180 294996 314760 325252 333365 338830 340990 341016 346580 368745 375992 400038 406565 406596 409188 415896 426270 440479 469990 487878 491660 508245 511485 519870 533384 563988 568360 589992 610987 650504 666730 677660 681980 693160 704985 737490 800076 813130 813192 818376 852540 866749 880958 939980 975756 983320 1000095 1016490 1022970 1039740 1057069 1127976 1219695 1221974 1321437 1333460 1355320 1363960 1409970 1456969 1474980 1600152 1626260 1705080 1733498 1761916 1832961 1879960 1951512 2000190 2032980 2045940 2066863 2079480 2114138 2202395 2439390 2443948 2600247 2642874 2666920 2819940 2866939 2913938 2949960 3054935 3171207 3252520 3466996 3523832 3665922 4000380 4065960 4091880 4133726 4228276 4333745 4370907 4404790 4878780 4887896 5200494 5285345 5285748 5639880 5733878 5827876 6109870 6200589 6342414 6607185 6933992 7284845 7331844 8000760 8267452 8456552 8600817 8667490 8741814 8809580 9164805 9757560 10334315 10400988 10570690 10571496 11467756 11655752 12219740 12401178 12684828 13001235 13214370 14334695 14569690 14663688 15856035 16534904 17201634 17334980 17483628 17619160 18329610 18940597 20668630 20801976 21141380 21854535 22935512 24439480 24802356 25369656 26002470 26428740 26869219 28669390 29139380 31002945 31712070 34403268 34669960 34967256 36659220 37270207 37881194 41337260 42282760 43004085 43709070 49604712 52004940 52857480 53738438 56821791 57338780 58278760 62005890 63424140 68806536 73318440 74540414 75762388 80607657 82674520 86008170 87418140 88875109 94702985 104009880 107476876 111810621 113643582 114677560 124011780 126848280 134346095 149080828 151524776 161215314 172016340 174836280 177750218 186351035 189405970 214953752 223621242 227287164 248023560 266625327 268692190 284108955 298161656 322430628 344032680 355500436 372702070 378811940 403038285 444375545 447242484 454574328 533250654 537384380 559053105 568217910 644861256 711000872 745404140 757623880 806076570 888751090 894484968 1066501308 1074768760 1118106210 1136435820 1155376417 1333126635 1490808280 1612153140 1777502180 2133002616 2236212420 2272871640 2310752834 2666253270 3224306280 3466129251 3555004360 4472424840 4621505668 5332506540 5776882085 6932258502 9243011336 10665013080 11553764170 13864517004 17330646255 23107528340 27729034008 34661292510 46215056680 69322585020 138645170040
• Sum of all divisors σ(n): 481329192960
• Sum of proper divisors (its aliquot sum) s(n): 342684022920
• 138645170040 is an abundant number, because the sum of its proper divisors (342684022920) is greater than itself. Its abundance is 204038852880

Bases of 138645170040

• Binary: 10000001000111111001010110011101111000₂
• Hexadecimal: 0x2047E56778
• Base-36: 1ROXR5VC

Squares and roots of 138645170040

• 138645170040 squared (138645170040²) is 19222483175420513601600
• 138645170040 cubed (138645170040³) is 2665104448447216256797964816064000
• The square root of 138645170040 is 372350.8695303397
• The cube root of 138645170040 is 5175.6899051737

Scales and comparisons

• 138,645,170,040 seconds is equal to 4,408 years, 25 weeks, 2 days, 11 hours, 14 minutes.
• To count from 1 to 138,645,170,040 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 138645170040 cubic inches would be around 431.3 feet tall.

Recreational maths with 138645170040

• 138645170040 backwards is 040071546831
• 138645170040 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138645170040's digits is 39
• More coming soon!