18139909591440

Names of 18139909591440

• Cardinal: 18139909591440 can be written as Eighteen trillion, one hundred thirty-nine billion, nine hundred nine million, five hundred ninety-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.813990959144 × 10¹³

Factors of 18139909591440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 380

Divisors of 18139909591440

• Number of divisors d(n): 1620
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 19 20 21 24 26 28 30 35 36 38 39 40 42 45 48 49 52 56 57 60 63 65 70 72 76 78 80 84 90 91 95 98 104 105 112 114 117 120 126 130 133 140 144 147 152 156 168 171 180 182 190 195 196 208 210 228 234 240 245 247 252 260 266 273 280 285 294 304 312 315 331 336 342 360 361 364 380 390 392 399 420 441 455 456 468 490 494 504 520 532 546 560 570 585 588 624 630 637 662 665 684 720 722 728 735 741 760 780 784 798 819 840 855 882 910 912 931 936 980 988 993 1008 1040 1064 1083 1092 1140 1170 1176 1197 1235 1260 1274 1324 1330 1365 1368 1444 1456 1470 1482 1520 1560 1596 1638 1655 1680 1710 1729 1764 1805 1820 1862 1872 1911 1960 1976 1986 1995 2128 2166 2184 2205 2223 2280 2317 2340 2352 2394 2470 2520 2527 2548 2648 2660 2730 2736 2793 2888 2940 2964 2979 3120 3185 3192 3249 3276 3310 3420 3458 3528 3610 3640 3705 3724 3822 3920 3952 3972 3990 4095 4303 4332 4368 4410 4446 4560 4634 4655 4680 4693 4788 4940 4965 5040 5054 5096 5187 5296 5320 5415 5460 5586 5733 5776 5880 5928 5958 5985 6289 6370 6384 6498 6552 6620 6840 6916 6951 7056 7220 7280 7410 7448 7581 7644 7944 7980 8190 8379 8606 8645 8664 8820 8892 9268 9310 9360 9386 9555 9576 9880 9930 10108 10192 10374 10640 10830 10920 11115 11172 11466 11585 11760 11856 11916 11970 12103 12578 12635 12740 12909 12996 13104 13240 13680 13832 13902 13965 14079 14440 14820 14895 14896 15162 15288 15561 15888 15960 16219 16245 16380 16758 17212 17290 17328 17640 17689 17784 18536 18620 18772 18867 19110 19152 19760 19860 20216 20748 20853 21515 21660 21840 22230 22344 22743 22932 23170 23465 23832 23940 24206 25156 25270 25480 25818 25935 25992 26480 27664 27804 27930 28158 28665 28880 29640 29790 30121 30324 30576 31122 31445 31920 32438 32490 32760 32851 33516 34424 34580 34755 35280 35378 35568 36309 37072 37240 37544 37734 37905 38220 38727 39720 40432 41496 41706 41895 42237 43030 43320 44023 44460 44688 45486 45864 46340 46930 47664 47880 48412 48657 50312 50540 50960 51636 51870 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8524393605 9092686512 9133892040 9180116190 9255055914 9492365040 9690122645 9742164120 9966983292 10049811408 10283395460 10491561360 10608134264 10797565233 10960670448 11074425880 11365858140 11628147174 11934151047 12240154920 12340074552 12458729115 12562264260 13260167830 13289311056 13639029768 13700838060 14238547560 14396753644 14688185904 15154477520 15425093190 15504196232 15912201396 16611638820 16749685680 17048787210 17442220761 17995942055 18267784080 18360232380 18510111828 19380245290 19484328240 19890251745 19933966584 20566790920 21216268528 21595130466 22148851760 22731716280 23137639785 23256294348 23868302094 24480309840 24680149104 24917458230 25124528520 25194318877 26520335660 27278059536 27401676120 28477095120 28793507288 29070367935 30850186380 31008392464 31824402792 32392695699 33223277640 34097574420 34884441522 35991884110 36720464760 37020223656 38760490580 39780503490 39867933168 41133581840 43190260932 45463432560 46275279570 46512588696 47736604188 49834916460 50249057040 50388637754 53040671320 53987826165 54803352240 57587014576 58140735870 59670755235 61700372760 63648805584 64785391398 66446555280 68195148840 69768883044 71983768220 73440929520 74040447312 75582956631 77520981160 79561006980 86380521864 87211103805 92550559140 93025177392 95473208376 99669832920 100777275508 106081342640 107975652330 116281471740 119341510470 123400745520 125971594385 129570782796 136390297680 139537766088 143967536440 151165913262 155041962320 159122013960 161963478495 172761043728 174422207610 185101118280 190946416752 199339665840 201554551016 215951304660 226748869893 232562943480 238683020940 251943188770 259141565592 279075532176 287935072880 302331826524 318244027920 323926956990 348844415220 370202236560 377914783155 403109102032 431902609320 453497739786 465125886960 477366041880 503886377540 518283131184 604663653048 647853913980 697688830440 755829566310 863805218640 906995479572 954732083760 1007772755080 1133744349465 1209327306096 1295707827960 1395377660880 1511659132620 1813990959144 2015545510160 2267488698930 2591415655920 3023318265240 3627981918288 4534977397860 6046636530480 9069954795720 18139909591440
• Sum of all divisors σ(n): 80789364704412
• Sum of proper divisors (its aliquot sum) s(n): 62649455112972
• 18139909591440 is an abundant number, because the sum of its proper divisors (62649455112972) is greater than itself. Its abundance is 44509545521532

Bases of 18139909591440

• Binary: 100000111111110000110110111100001000110010000₂
• Hexadecimal: 0x107F86DE1190
• Base-36: 6FHCXT8K0

Squares and roots of 18139909591440

• 18139909591440 squared (18139909591440²) is 329056319985616907721273600
• 18139909591440 cubed (18139909591440³) is 5969051895031041907218564370772457984000
• The square root of 18139909591440 is 4259097.2742401647
• The cube root of 18139909591440 is 26275.1400411643

Scales and comparisons

• 18,139,909,591,440 seconds is equal to 576,793 years, 5 days, 7 hours, 24 minutes.
• To count from 1 to 18,139,909,591,440 would take you about one million, four hundred forty-one thousand, nine hundred eighty-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 18139909591440 cubic inches would be around 2189.6 feet tall.

Recreational maths with 18139909591440

• 18139909591440 backwards is 04419590993181
• 18139909591440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18139909591440's digits is 63
• More coming soon!