138920699280

Names of 138920699280

• Cardinal: 138920699280 can be written as One hundred thirty-eight billion, nine hundred twenty million, six hundred ninety-nine thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3892069928 × 10¹¹

Factors of 138920699280

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3290

Divisors of 138920699280

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 30 31 33 34 40 44 48 51 55 60 62 66 68 80 85 88 93 102 110 120 124 132 136 155 165 170 176 186 187 204 220 240 248 255 264 272 310 330 340 341 372 374 408 440 465 496 510 527 528 561 620 660 680 682 744 748 816 880 930 935 961 1020 1023 1054 1122 1240 1320 1360 1364 1488 1496 1581 1705 1860 1870 1922 2040 2046 2108 2244 2480 2635 2640 2728 2805 2883 2992 3162 3221 3410 3720 3740 3844 4080 4092 4216 4488 4805 5115 5270 5456 5610 5766 5797 6324 6442 6820 7440 7480 7688 7905 8184 8432 8976 9610 9663 10230 10540 10571 11220 11532 11594 12648 12884 13640 14415 14960 15376 15810 16105 16337 16368 17391 19220 19326 20460 21080 21142 22440 23064 23188 25296 25768 27280 28830 28985 31620 31713 32210 32674 34782 35431 38440 38652 40920 42160 42284 44880 46128 46376 48315 49011 51536 52855 54757 57660 57970 63240 63426 64420 65348 69564 70862 76880 77304 81685 81840 84568 86955 92752 96630 98022 99851 105710 106293 109514 115320 115940 126480 126852 128840 130696 139128 141724 154608 158565 163370 164271 169136 173910 177155 179707 193260 196044 199702 211420 212586 219028 230640 231880 245055 253704 257680 261392 273785 278256 283448 299553 317130 326740 328542 347820 354310 359414 386520 392088 399404 422840 425172 438056 463760 490110 499255 507408 531465 539121 547570 566896 599106 602327 634260 653480 657084 695640 708620 718828 773040 784176 798808 821355 845680 850344 876112 898535 980220 998510 1062930 1078242 1095140 1098361 1198212 1204654 1268520 1306960 1314168 1391280 1417240 1437656 1497765 1597616 1642710 1697467 1700688 1797070 1806981 1960440 1997020 2125860 2156484 2190280 2196722 2396424 2409308 2537040 2628336 2695605 2834480 2875312 2995530 3011635 3095381 3285420 3295083 3394934 3594140 3613962 3920880 3994040 4251720 4312968 4380560 4393444 4792848 4818616 5092401 5391210 5491805 5991060 6023270 6190762 6570840 6590166 6789868 7188280 7227924 7988080 8487335 8503440 8625936 8786888 9034905 9286143 9637232 10184802 10782420 10983610 11982120 12046540 12381524 13141680 13180332 13579736 14376560 14455848 15476905 16475415 16974670 17573776 18069810 18572286 18672137 20369604 21564840 21967220 23964240 24093080 24763048 25462005 26360664 27159472 28911696 30953810 32950830 33949340 34049191 36139620 37144572 37344274 40739208 43129680 43934440 46430715 48186160 49526096 50924010 52621477 52721328 56016411 61907620 65901660 67898680 68098382 72279240 74289144 74688548 81478416 87868880 92861430 93360685 101848020 102147573 105242954 112032822 123815240 131803320 135797360 136196764 144558480 148578288 149377096 157864431 170245955 185722860 186721370 203696040 204295146 210485908 224065644 247630480 263107385 263606640 272393528 280082055 298754192 315728862 340491910 371445720 373442740 407392080 408590292 420971816 448131288 510737865 526214770 544787056 560164110 578836247 631457724 680983820 742891440 746885480 789322155 817180584 841943632 896262576 1021475730 1052429540 1120328220 1157672494 1262915448 1361967640 1493770960 1578644310 1634361168 1736508741 2042951460 2104859080 2240656440 2315344988 2525830896 2723935280 2894181235 3157288620 3473017482 4085902920 4209718160 4481312880 4630689976 5788362470 6314577240 6946034964 8171805840 8682543705 9261379952 11576724940 12629154480 13892069928 17365087410 23153449880 27784139856 34730174820 46306899760 69460349640 138920699280
• Sum of all divisors σ(n): 514163769984
• Sum of proper divisors (its aliquot sum) s(n): 375243070704
• 138920699280 is an abundant number, because the sum of its proper divisors (375243070704) is greater than itself. Its abundance is 236322371424

Bases of 138920699280

• Binary: 10000001011000010100011010010110010000₂
• Hexadecimal: 0x205851A590
• Base-36: 1RTHSPLC

Squares and roots of 138920699280

• 138920699280 squared (138920699280²) is 19298960688444192518400
• 138920699280 cubed (138920699280³) is 2681025114215897439911072266752000
• The square root of 138920699280 is 372720.6719247003
• The cube root of 138920699280 is 5179.1161822009

Scales and comparisons

• 138,920,699,280 seconds is equal to 4,417 years, 12 weeks, 6 days, 11 hours, 8 minutes.
• To count from 1 to 138,920,699,280 would take you about eight thousand, eight hundred thirty-four 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 138920699280 cubic inches would be around 431.6 feet tall.

Recreational maths with 138920699280

• 138920699280 backwards is 082996029831
• The number of decimal digits it has is: 12
• The sum of 138920699280's digits is 57
• More coming soon!