138785287680

Names of 138785287680

• Cardinal: 138785287680 can be written as One hundred thirty-eight billion, seven hundred eighty-five million, two hundred eighty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.3878528768 × 10¹¹

Factors of 138785287680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 132

Divisors of 138785287680

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 64 65 72 78 80 90 96 104 108 109 117 120 128 130 135 144 156 160 169 180 192 195 208 216 218 234 240 256 260 270 288 312 320 327 338 351 360 384 390 416 432 436 468 480 507 512 520 540 545 576 585 624 640 654 676 702 720 768 780 832 845 864 872 936 960 981 1014 1040 1080 1090 1152 1170 1248 1280 1308 1352 1404 1417 1440 1521 1536 1560 1635 1664 1690 1728 1744 1755 1872 1920 1962 2028 2080 2160 2180 2304 2340 2496 2535 2560 2616 2704 2808 2834 2880 2943 3042 3120 3270 3328 3380 3456 3488 3510 3744 3840 3924 4056 4160 4251 4320 4360 4563 4608 4680 4905 4992 5070 5232 5408 5616 5668 5760 5886 6084 6240 6540 6656 6760 6912 6976 7020 7085 7488 7605 7680 7848 8112 8320 8502 8640 8720 9126 9360 9810 9984 10140 10464 10816 11232 11336 11520 11772 11881 12168 12480 12753 13080 13520 13824 13952 14040 14170 14715 14976 15210 15696 16224 16640 17004 17280 17440 18252 18421 18720 19620 19968 20280 20928 21255 21632 22464 22672 22815 23040 23544 23762 24336 24960 25506 26160 27040 27904 28080 28340 29430 29952 30420 31392 32448 33280 34008 34560 34880 35643 36504 36842 37440 38259 39240 40560 41856 42510 43264 44928 45344 45630 47088 47524 48672 49920 51012 52320 54080 55263 55808 56160 56680 58860 59405 59904 60840 62784 63765 64896 68016 69120 69760 71286 73008 73684 74880 76518 78480 81120 83712 85020 86528 89856 90688 91260 92105 94176 95048 97344 99840 102024 104640 106929 108160 110526 112320 113360 117720 118810 121680 125568 127530 129792 136032 139520 142572 146016 147368 149760 153036 154453 156960 162240 165789 167424 170040 178215 179712 181376 182520 184210 188352 190096 191295 194688 204048 209280 213858 216320 221052 224640 226720 235440 237620 243360 251136 255060 259584 272064 276315 279040 285144 292032 294736 299520 306072 308906 313920 320787 324480 331578 340080 356430 362752 365040 368420 376704 380192 382590 389376 408096 418560 427716 432640 442104 449280 453440 463359 470880 475240 486720 497367 502272 510120 534645 544128 552630 570288 584064 589472 612144 617812 627840 641574 648960 663156 680160 712860 725504 730080 736840 753408 760384 765180 772265 778752 816192 828945 837120 855432 884208 898560 906880 926718 941760 950480 973440 994734 1020240 1069290 1088256 1105260 1140576 1168128 1178944 1224288 1235624 1255680 1283148 1297920 1326312 1360320 1390077 1425720 1460160 1473680 1506816 1520768 1530360 1544530 1603935 1632384 1657890 1710864 1768416 1813760 1853436 1883520 1900960 1946880 1989468 2007889 2040480 2138580 2176512 2210520 2281152 2316795 2336256 2357888 2448576 2471248 2486835 2511360 2566296 2652624 2720640 2780154 2851440 2920320 2947360 3041536 3060720 3089060 3207870 3264768 3315780 3421728 3536832 3627520 3706872 3767040 3801920 3893760 3978936 4015778 4080960 4170231 4277160 4421040 4562304 4633590 4715776 4897152 4942496 4973670 5132592 5305248 5441280 5560308 5702880 5840640 5894720 6023667 6083072 6121440 6178120 6415740 6529536 6631560 6843456 6950385 7073664 7413744 7534080 7603840 7957872 8031556 8161920 8340462 8554320 8842080 9124608 9267180 9431552 9794304 9884992 9947340 10039445 10265184 10610496 10882560 11120616 11405760 11681280 11789440 12047334 12242880 12356240 12831480 13263120 13686912 13900770 14147328 14827488 15207680 15915744 16063112 16323840 16680924 17108640 17684160 18071001 18249216 18534360 19588608 19769984 19894680 20078890 20530368 20851155 21220992 22241232 22811520 23578880 24094668 24485760 24712480 25662960 26526240 27373824 27801540 28294656 29654976 30118335 30415360 31831488 32126224 32647680 33361848 34217280 35368320 36142002 37068720 39539968 39789360 40157780 41060736 41702310 42441984 44482464 45623040 47157760 48189336 48971520 49424960 51325920 53052480 54213003 54747648 55603080 59309952 60236670 63662976 64252448 66723696 68434560 70736640 72284004 74137440 79079936 79578720 80315560 82121472 83404620 84883968 88964928 90355005 91246080 96378672 97943040 98849920 102651840 106104960 108426006 111206160 118619904 120473340 127325952 128504896 133447392 136869120 141473280 144568008 148274880 159157440 160631120 164242944 166809240 177929856 180710010 192757344 197699840 205303680 212209920 216852012 222412320 237239808 240946680 254651904 257009792 266894784 271065015 273738240 289136016 296549760 318314880 321262240 333618480 355859712 361420020 385514688 395399680 410607360 424419840 433704024 444824640 481893360 514019584 533789568 542130030 578272032 593099520 636629760 642524480 667236960 711719424 722840040 771029376 821214720 867408048 889649280 963786720 1028039168 1067579136 1084260060 1156544064 1186199040 1273259520 1285048960 1334473920 1445680080 1542058752 1734816096 1779298560 1927573440 2135158272 2168520120 2313088128 2570097920 2668947840 2891360160 3084117504 3469632192 3558597120 3855146880 4337040240 4626176256 5140195840 5337895680 5782720320 6939264384 7710293760 8674080480 9252352512 10675791360 11565440640 13878528768 15420587520 17348160960 23130881280 27757057536 34696321920 46261762560 69392643840 138785287680
• Sum of all divisors σ(n): 538757548560
• Sum of proper divisors (its aliquot sum) s(n): 399972260880
• 138785287680 is an abundant number, because the sum of its proper divisors (399972260880) is greater than itself. Its abundance is 261186973200

Bases of 138785287680

• Binary: 10000001010000001111110110111000000000₂
• Hexadecimal: 0x20503F6E00
• Base-36: 1RR96DC0

Squares and roots of 138785287680

• 138785287680 squared (138785287680²) is 19261356076420359782400
• 138785287680 cubed (138785287680³) is 2673192844172915697009486200832000
• The square root of 138785287680 is 372538.9747127137
• The cube root of 138785287680 is 5177.4328707825

Scales and comparisons

• 138,785,287,680 seconds is equal to 4,412 years, 49 weeks, 4 hours, 48 minutes.
• To count from 1 to 138,785,287,680 would take you about eight thousand, eight hundred twenty-five 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 138785287680 cubic inches would be around 431.5 feet tall.

Recreational maths with 138785287680

• 138785287680 backwards is 086782587831
• The number of decimal digits it has is: 12
• The sum of 138785287680's digits is 63
• More coming soon!