138731047728

Names of 138731047728

• Cardinal: 138731047728 can be written as One hundred thirty-eight billion, seven hundred thirty-one million, forty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38731047728 × 10¹¹

Factors of 138731047728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 188

Divisors of 138731047728

• Number of divisors d(n): 800
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 29 31 39 42 48 49 52 56 58 62 78 84 87 91 93 98 103 104 112 116 124 147 156 168 174 182 186 196 203 206 208 217 232 248 273 294 309 312 336 343 348 364 372 377 392 403 406 412 434 464 496 546 588 609 618 624 637 651 686 696 721 728 744 754 784 806 812 824 868 899 1029 1092 1131 1176 1209 1218 1236 1274 1302 1339 1372 1392 1421 1442 1456 1488 1508 1519 1612 1624 1648 1736 1798 1911 2058 2163 2184 2262 2352 2401 2418 2436 2472 2548 2604 2639 2678 2697 2744 2821 2842 2884 2987 3016 3038 3193 3224 3248 3472 3596 3822 4017 4116 4263 4326 4368 4459 4524 4557 4802 4836 4872 4944 5047 5096 5208 5278 5356 5394 5488 5642 5684 5768 5974 6032 6076 6293 6386 6448 7192 7203 7644 7917 8034 8232 8463 8526 8652 8918 8961 9048 9114 9373 9579 9604 9672 9744 9947 10094 10192 10416 10556 10633 10712 10788 11284 11368 11536 11687 11948 12152 12586 12772 13377 14384 14406 15141 15288 15834 16068 16464 16926 17052 17304 17836 17922 18096 18228 18473 18746 18879 19158 19208 19344 19747 19894 20188 20909 21112 21266 21424 21576 22351 22568 22736 23374 23896 24304 25172 25544 26754 28119 28812 29841 30282 30576 31213 31668 31899 32136 33852 34104 34608 35061 35329 35672 35844 36456 36946 37492 37758 38316 38416 38831 39494 39788 40376 41509 41818 42224 42532 43152 44051 44702 45136 46748 47792 50344 51088 53508 55419 56238 57624 59241 59682 60564 62426 62727 63336 63798 64272 65611 67053 67704 68208 69629 70122 70658 71344 71688 72912 73892 74431 74984 75516 76632 77662 78988 79576 80752 81809 83018 83636 85064 88102 89404 92597 93496 93639 100688 105987 107016 110838 112476 115248 116493 118482 119364 121128 124527 124852 125454 126672 127596 129311 131222 132153 134106 135408 138229 139258 140244 141316 143376 146363 147784 148862 149968 151032 153264 155324 156457 157976 159152 163618 166036 167272 170128 176204 178808 185194 186992 187278 196833 208887 211974 214032 221676 223293 224952 232986 236964 238728 242256 245427 247303 249054 249704 250908 255192 258622 262444 264306 268212 271817 276458 277791 278516 280488 282632 290563 292726 295568 297724 302064 308357 310648 312914 315952 327236 332072 334544 352408 357616 370388 374556 387933 393666 414687 417774 423948 439089 443352 446586 449904 459277 465972 469371 473928 477456 490854 494606 498108 499408 501816 510384 517244 524888 528612 536424 543634 552916 555582 557032 560976 565264 572663 581126 585452 595448 616714 621296 625828 648179 654472 664144 704816 740776 741909 749112 775866 787332 815451 829374 835548 847896 871689 878178 886704 893172 905177 918554 925071 931944 938742 947856 967603 981708 989212 996216 1003632 1024541 1034488 1049776 1057224 1072848 1087268 1095199 1105832 1111164 1114064 1145326 1162252 1170904 1190896 1203761 1233428 1251656 1296358 1308944 1377831 1481552 1483818 1498224 1551732 1574664 1630902 1658748 1671096 1695792 1717989 1743378 1756356 1786344 1810354 1837108 1850142 1863888 1877484 1902719 1935206 1944537 1963416 1978424 1992432 2033941 2049082 2068976 2114448 2158499 2174536 2190398 2211664 2222328 2290652 2324504 2341808 2407522 2466856 2503312 2592716 2715531 2755662 2902809 2967636 3073623 3103464 3149328 3214939 3261804 3285597 3317496 3342192 3435978 3486756 3512712 3572688 3611283 3620708 3674216 3700284 3754968 3805438 3870412 3889074 3926832 3956848 4008641 4067882 4098164 4316998 4349072 4380796 4444656 4537253 4581304 4649008 4815044 4933712 5185432 5431062 5511324 5708157 5805618 5935272 6101823 6147246 6206928 6429878 6475497 6523608 6571194 6634992 6871956 6973512 7025424 7171787 7222566 7241416 7348432 7400568 7509936 7610876 7666393 7740824 7778148 8017282 8135764 8196328 8426327 8633996 8761592 9074506 9162608 9630088 9644817 10370864 10862124 11022648 11416314 11611236 11870544 12025923 12203646 12294492 12859756 12950994 13047216 13142388 13319033 13611759 13743912 13947024 14237587 14343574 14445132 14482832 14801136 15221752 15332786 15481648 15556296 16034564 16271528 16392656 16852654 17267992 17523184 18149012 19260176 19289634 21515361 21724248 22045296 22832628 22999179 23222472 24051846 24407292 24588984 25278981 25719512 25901988 26284776 26638066 27223518 27487824 28060487 28475174 28687148 28890264 30443504 30665572 31112592 31760771 32069128 32543056 33705308 34535984 36298024 38579268 39957099 42712761 43030722 43448496 45665256 45998358 46444944 48103692 48814584 49177968 50557962 51439024 51803976 52569552 53276132 54447036 56120974 56950348 57374296 57780528 58984289 61331144 63521542 64138256 67410616 72596048 77158536 79914198 84181461 85425522 86061444 91330512 91996716 93233231 95282313 96207384 97629168 99663109 101115924 103607952 106552264 108894072 112241948 113900696 114748592 117968578 122662288 127043084 134821232 154317072 159828396 168362922 170851044 172122888 176952867 183993432 186466462 190564626 192414768 199326218 202231848 213104528 217788144 222325397 224483896 227801392 235937156 254086168 279699693 298989327 319656792 336725844 341702088 344245776 353905734 367986864 372932924 381129252 398652436 404463696 412890023 444650794 448967792 471874312 508172336 559399386 597978654 639313584 666976191 673451688 683404176 707811468 745865848 762258504 797304872 825780046 889301588 943748624 1118798772 1195957308 1238670069 1333952382 1346903376 1415622936 1491731696 1524517008 1594609744 1651560092 1778603176 2237597544 2391914616 2477340138 2667904764 2831245872 2890230161 3303120184 3557206352 4475195088 4783829232 4954680276 5335809528 5780460322 6606240368 8670690483 9909360552 10671619056 11560920644 17341380966 19818721104 23121841288 34682761932 46243682576 69365523864 138731047728
• Sum of all divisors σ(n): 485475594240
• Sum of proper divisors (its aliquot sum) s(n): 346744546512
• 138731047728 is an abundant number, because the sum of its proper divisors (346744546512) is greater than itself. Its abundance is 208013498784

Bases of 138731047728

• Binary: 10000001001101000000111100101100110000₂
• Hexadecimal: 0x204D03CB30
• Base-36: 1RQCVTIO

Squares and roots of 138731047728

• 138731047728 squared (138731047728²) is 19246303603708613961984
• 138731047728 cubed (138731047728³) is 2670059863833678121364729481572352
• The square root of 138731047728 is 372466.1699107719
• The cube root of 138731047728 is 5176.7583028779

Scales and comparisons

• 138,731,047,728 seconds is equal to 4,411 years, 11 weeks, 2 days, 10 hours, 8 minutes, 48 seconds.
• To count from 1 to 138,731,047,728 would take you about eight thousand, eight hundred twenty-two 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 138731047728 cubic inches would be around 431.4 feet tall.

Recreational maths with 138731047728

• 138731047728 backwards is 827740137831
• The number of decimal digits it has is: 12
• The sum of 138731047728's digits is 51
• More coming soon!