138139329640

Names of 138139329640

• Cardinal: 138139329640 can be written as One hundred thirty-eight billion, one hundred thirty-nine million, three hundred twenty-nine thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.3813932964 × 10¹¹

Factors of 138139329640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1159

Divisors of 138139329640

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 8 10 13 17 20 26 29 34 40 52 58 65 68 85 104 116 130 136 145 170 221 232 260 289 290 340 377 442 493 520 578 580 680 754 841 884 986 1093 1105 1156 1160 1445 1508 1682 1768 1885 1972 2186 2210 2312 2465 2890 3016 3364 3757 3770 3944 4205 4372 4420 4930 5465 5780 6409 6728 7514 7540 8381 8410 8744 8840 9860 10930 10933 11560 12818 14209 14297 15028 15080 16762 16820 18581 18785 19720 21860 21866 25636 28418 28594 30056 31697 32045 33524 33640 37162 37570 41905 43720 43732 51272 54665 56836 57188 63394 64090 67048 71045 71485 74324 75140 83810 87464 92905 108953 109330 113672 114376 126788 128180 142090 142970 148648 150280 158485 167620 185810 185861 217906 218660 241553 243049 253576 256360 284180 285940 315877 316970 335240 371620 371722 412061 435812 437320 483106 486098 538849 544765 568360 571880 631754 633940 743240 743444 824122 871624 919213 929305 966212 972196 1077698 1089530 1207765 1215245 1263508 1267880 1486888 1579385 1648244 1838426 1858610 1932424 1944392 2060305 2155396 2179060 2415530 2430490 2527016 2694245 3158770 3159637 3296488 3676852 3717220 4106401 4120610 4310792 4358120 4596065 4831060 4860980 5388490 6317540 6319274 7005037 7353704 7434440 8212802 8241220 9160433 9192130 9662120 9721960 10776980 11949769 12635080 12638548 14010074 15626621 15798185 16425604 16482440 18320866 18384260 20532005 21553960 23899538 25277096 28020148 31253242 31596370 32851208 35025185 36641732 36768520 41064010 45802165 47799076 56040296 59748845 62506484 63192740 70050370 73283464 78133105 82128020 91604330 95598152 119085629 119497690 125012968 126385480 140100740 156266210 164256040 183208660 203146073 238171258 238995380 265652557 280201480 312532420 366417320 406292146 476342516 477990760 531305114 595428145 625064840 812584292 952685032 1015730365 1062610228 1190856290 1328262785 1625168584 2031460730 2125220456 2381712580 2656525570 3453483241 4062921460 4763425160 5313051140 6906966482 8125842920 10626102280 13813932964 17267416205 27627865928 34534832410 69069664820 138139329640
• Sum of all divisors σ(n): 368590720680
• Sum of proper divisors (its aliquot sum) s(n): 230451391040
• 138139329640 is an abundant number, because the sum of its proper divisors (230451391040) is greater than itself. Its abundance is 92312061400

Bases of 138139329640

• Binary: 10000000101001101111101110010001101000₂
• Hexadecimal: 0x2029BEE468
• Base-36: 1RGKL8X4

Squares and roots of 138139329640

• 138139329640 squared (138139329640²) is 19082474393388582529600
• 138139329640 cubed (138139329640³) is 2636040220575164438668759457344000
• The square root of 138139329640 is 371670.9965009377
• The cube root of 138139329640 is 5169.3878140331

Scales and comparisons

• 138,139,329,640 seconds is equal to 4,392 years, 20 weeks, 6 days, 20 hours, 40 seconds.
• To count from 1 to 138,139,329,640 would take you about eight thousand, seven hundred eighty-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 138139329640 cubic inches would be around 430.8 feet tall.

Recreational maths with 138139329640

• 138139329640 backwards is 046923931831
• The number of decimal digits it has is: 12
• The sum of 138139329640's digits is 49
• More coming soon!