138669455440

Names of 138669455440

• Cardinal: 138669455440 can be written as One hundred thirty-eight billion, six hundred sixty-nine million, four hundred fifty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.3866945544 × 10¹¹

Factors of 138669455440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 145

Divisors of 138669455440

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 31 37 40 41 58 62 74 80 82 116 124 145 148 155 164 185 205 232 248 290 296 310 328 370 410 464 496 580 592 620 656 740 820 899 961 1073 1147 1160 1189 1240 1271 1480 1517 1640 1681 1798 1922 2146 2294 2320 2378 2480 2542 2960 3034 3280 3362 3596 3844 4292 4495 4588 4756 4805 5084 5365 5735 5945 6068 6355 6724 7192 7585 7688 8405 8584 8990 9176 9512 9610 10168 10730 11470 11890 12136 12710 13448 14384 15170 15376 16810 17168 17980 18352 19024 19220 20336 21460 22940 23780 24272 25420 26896 27869 30340 33263 33620 35557 35960 36859 38440 39401 42920 43993 45880 47027 47560 48749 50840 52111 55738 60680 62197 66526 67240 71114 71920 73718 76880 78802 85840 87986 91760 94054 95120 97498 101680 104222 111476 121360 124394 133052 134480 139345 142228 147436 157604 166315 175972 177785 184295 188108 194996 197005 208444 219965 222952 235135 243745 248788 260555 266104 278690 284456 294872 310985 315208 332630 351944 355570 368590 376216 389992 394010 416888 439930 445904 470270 487490 497576 521110 532208 557380 568912 589744 621970 630416 665260 703888 711140 737180 752432 779984 788020 833776 879860 940540 974980 995152 1031153 1042220 1114760 1142629 1243940 1330520 1363783 1422280 1457837 1474360 1511219 1576040 1615441 1759720 1803713 1881080 1928107 1949960 2062306 2084440 2229520 2285258 2487880 2661040 2727566 2844560 2915674 2948720 3022438 3152080 3230882 3519440 3607426 3762160 3856214 3899920 4124612 4168880 4570516 4975760 5155765 5455132 5713145 5831348 6044876 6461764 6818915 7214852 7289185 7556095 7712428 8077205 8249224 9018565 9141032 9640535 10311530 10910264 11426290 11662696 12089752 12923528 13637830 14429704 14578370 15112190 15424856 16154410 16498448 18037130 18282064 19281070 20623060 21820528 22852580 23325392 24179504 25847056 27275660 28859408 29156740 30224380 30849712 32308820 36074260 38562140 41246120 42277273 45705160 46847789 54551320 55915103 58313480 59771317 60448760 64617640 72148520 77124280 82492240 84554546 91410320 93695578 109102640 111830206 116626960 119542634 120897520 129235280 144297040 154248560 169109092 187391156 211386365 223660412 234238945 239085268 279575515 298856585 338218184 374782312 422772730 447320824 468477890 478170536 559151030 597713170 676436368 749564624 845545460 894641648 936955780 956341072 1118302060 1195426340 1691090920 1733368193 1873911560 2236604120 2390852680 3382181840 3466736386 3747823120 4473208240 4781705360 6933472772 8666840965 13866945544 17333681930 27733891088 34667363860 69334727720 138669455440
• Sum of all divisors σ(n): 362787505560
• Sum of proper divisors (its aliquot sum) s(n): 224118050120
• 138669455440 is an abundant number, because the sum of its proper divisors (224118050120) is greater than itself. Its abundance is 85448594680

Bases of 138669455440

• Binary: 10000001001001010101111111100001010000₂
• Hexadecimal: 0x204957F850
• Base-36: 1RPC7OLS

Squares and roots of 138669455440

• 138669455440 squared (138669455440²) is 19229217872026145593600
• 138669455440 cubed (138669455440³) is 2666505170850981218906667549184000
• The square root of 138669455440 is 372383.4790105491
• The cube root of 138669455440 is 5175.9920826951

Scales and comparisons

• 138,669,455,440 seconds is equal to 4,409 years, 13 weeks, 3 days, 13 hours, 10 minutes, 40 seconds.
• To count from 1 to 138,669,455,440 would take you about eight thousand, eight hundred eighteen 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 138669455440 cubic inches would be around 431.3 feet tall.

Recreational maths with 138669455440

• 138669455440 backwards is 044554966831
• The number of decimal digits it has is: 12
• The sum of 138669455440's digits is 55
• More coming soon!