138998251980

Names of 138998251980

• Cardinal: 138998251980 can be written as One hundred thirty-eight billion, nine hundred ninety-eight million, two hundred fifty-one thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.3899825198 × 10¹¹

Factors of 138998251980

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 71

Divisors of 138998251980

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 23 28 30 31 35 36 42 45 46 49 60 62 63 69 70 84 90 92 93 98 105 115 124 126 138 140 147 155 161 180 186 196 207 210 217 230 245 252 276 279 294 310 315 322 345 372 414 420 434 441 460 465 483 490 529 558 588 620 630 644 651 690 713 735 805 828 868 882 930 961 966 980 1035 1058 1085 1116 1127 1260 1302 1380 1395 1426 1449 1470 1519 1587 1610 1764 1860 1922 1932 1953 2070 2116 2139 2170 2205 2254 2415 2604 2645 2790 2852 2883 2898 2940 3038 3174 3220 3255 3381 3565 3703 3844 3906 4140 4278 4340 4410 4508 4557 4761 4805 4830 4991 5290 5580 5635 5766 5796 6076 6348 6417 6510 6727 6762 7130 7245 7406 7595 7812 7935 8556 8649 8820 9114 9522 9610 9660 9765 9982 10143 10580 10695 11109 11270 11532 12834 13020 13454 13524 13671 14260 14415 14490 14812 14973 15190 15870 16399 16905 17298 18228 18515 19044 19220 19530 19964 20181 20286 21390 22103 22218 22540 22785 23805 24955 25668 25921 26908 27342 28830 28980 29791 29946 30380 31740 32085 32798 33327 33635 33810 34596 34937 37030 39060 40362 40572 42780 43245 44206 44436 44919 45570 47089 47610 49197 49910 50715 51842 54684 55545 57660 59582 59892 60543 64170 65596 66309 66654 67270 67620 68355 69874 74060 74865 77763 80724 81995 86490 88412 89373 89838 91140 94178 95220 98394 99820 100905 101430 103684 104811 110515 111090 114793 119164 121086 128340 129605 132618 133308 134540 136710 139748 141267 147591 148955 149730 154721 155526 163990 166635 172980 174685 178746 179676 188356 196788 198927 201810 202860 208537 209622 221030 222180 224595 229586 233289 235445 242172 245985 259210 265236 268119 273420 282534 295182 297910 299460 302715 309442 311052 314433 327980 331545 333270 344379 349370 357492 388815 397854 403620 417074 419244 423801 442060 446865 449190 459172 464163 466578 470890 491970 508369 518420 524055 536238 565068 573965 590364 595820 605430 618884 625611 628866 663090 666540 685193 688758 698740 706335 737955 773605 777630 795708 803551 834148 847602 893730 898380 928326 933156 941780 983940 994635 1016738 1033137 1042685 1048110 1072476 1083047 1147930 1166445 1210860 1251222 1257732 1326180 1340595 1370386 1377516 1392489 1412670 1459759 1475910 1525107 1547210 1555260 1572165 1607102 1695204 1721895 1787460 1856652 1876833 1989270 2033476 2055579 2066274 2085370 2096220 2119005 2166094 2295860 2320815 2332890 2410653 2502444 2541845 2681190 2740772 2784978 2825340 2919518 2951820 3050214 3094420 3128055 3144330 3214204 3249141 3425965 3443790 3558583 3753666 3978540 4017755 4111158 4132548 4170740 4238010 4332188 4379277 4575321 4641630 4665780 4796351 4821306 5083690 5165685 5362380 5415235 5569956 5839036 6100428 6166737 6256110 6288660 6498282 6851930 6887580 6962445 7117166 7231959 7298795 7507332 7625535 8035510 8222316 8476020 8758554 9150642 9283260 9384165 9592702 9642612 9747423 10167380 10277895 10331370 10675749 10830470 12053265 12333474 12512220 12996564 13137831 13703860 13924890 14234332 14389053 14463918 14597590 15251070 15759439 16071020 16245705 17517108 17792915 18301284 18768330 19185404 19494846 20555790 20662740 21351498 21660940 21896385 22876605 23981755 24106530 24666948 24910081 26275662 27849780 28778106 28927836 29195180 30502140 30833685 31518878 32027247 32491410 33574457 35585830 36159795 37536660 38989692 41111580 42702996 43167159 43792770 45753210 47278317 47963510 48213060 48737115 49820162 52551324 53378745 57556212 61667370 63037756 64054494 64982820 65689155 67148914 71171660 71945265 72319590 74730243 78797195 86334318 87585540 91506420 94556634 95927020 97474230 99640324 100723371 106757490 110316073 123334740 124550405 128108988 131378310 134297828 141834951 143890530 144639180 149460486 157594390 160136235 167872285 172668636 189113268 194948460 201446742 213514980 215835795 220632146 224190729 236391585 249100810 262756620 283669902 287781060 298920972 302170113 315188780 320272470 330948219 335744570 373651215 402893484 431671590 441264292 448381458 472783170 498201620 503616855 551580365 567339804 604340226 640544940 661896438 671489140 709174755 747302430 772212511 863343180 896762916 945566340 992844657 1007233710 1103160730 1120953645 1208680452 1323792876 1418349510 1494604860 1510850565 1544425022 1654741095 1985689314 2014467420 2206321460 2241907290 2316637533 2836699020 3021701130 3088850044 3309482190 3861062555 3971378628 4483814580 4633275066 4964223285 6043402260 6618964380 6949912599 7722125110 9266550132 9928446570 11583187665 13899825198 15444250220 19856893140 23166375330 27799650396 34749562995 46332750660 69499125990 138998251980
• Sum of all divisors σ(n): 529806985344
• Sum of proper divisors (its aliquot sum) s(n): 390808733364
• 138998251980 is an abundant number, because the sum of its proper divisors (390808733364) is greater than itself. Its abundance is 251810481384

Bases of 138998251980

• Binary: 10000001011100111100010000000111001100₂
• Hexadecimal: 0x205CF101CC
• Base-36: 1RURYXN0

Squares and roots of 138998251980

• 138998251980 squared (138998251980²) is 19320514053495573920400
• 138998251980 cubed (138998251980³) is 2685517680790908983602475662392000
• The square root of 138998251980 is 372824.6933613705
• The cube root of 138998251980 is 5180.0797528505

Scales and comparisons

• 138,998,251,980 seconds is equal to 4,419 years, 37 weeks, 1 day, 1 hour, 33 minutes.
• To count from 1 to 138,998,251,980 would take you about eight thousand, eight hundred thirty-nine 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 138998251980 cubic inches would be around 431.7 feet tall.

Recreational maths with 138998251980

• 138998251980 backwards is 089152899831
• 138998251980 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138998251980's digits is 63
• More coming soon!