18189456480

Names of 18189456480

• Cardinal: 18189456480 can be written as Eighteen billion, one hundred eighty-nine million, four hundred fifty-six thousand, four hundred eighty.

Scientific notation

• Scientific notation: 1.818945648 × 10¹⁰

Factors of 18189456480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1887

Divisors of 18189456480

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 41 45 48 52 60 65 72 78 80 82 90 96 104 117 120 123 130 144 156 160 164 169 180 195 205 208 234 240 246 260 288 312 328 338 360 369 390 410 416 468 480 492 507 520 533 585 615 624 656 676 720 738 780 820 845 936 984 1014 1040 1066 1170 1230 1248 1312 1352 1440 1476 1521 1560 1599 1640 1690 1823 1845 1872 1968 2028 2080 2132 2340 2460 2535 2665 2704 2952 3042 3120 3198 3280 3380 3646 3690 3744 3936 4056 4264 4680 4797 4920 5070 5330 5408 5469 5904 6084 6240 6396 6560 6760 6929 7292 7380 7605 7995 8112 8528 9115 9360 9594 9840 10140 10660 10938 11808 12168 12792 13520 13858 14584 14760 15210 15990 16224 16407 17056 18230 18720 19188 19680 20280 20787 21320 21876 23699 23985 24336 25584 27040 27345 27716 29168 29520 30420 31980 32814 34645 36460 38376 40560 41574 42640 43752 47398 47970 48672 51168 54690 55432 58336 59040 60840 62361 63960 65628 69290 71097 72920 74743 76752 81120 82035 83148 85280 87504 94796 95940 103935 109380 110864 118495 121680 124722 127920 131256 138580 142194 145840 149486 153504 164070 166296 175008 189592 191880 207870 213291 218760 221728 224229 236990 243360 249444 255840 262512 277160 284388 291680 298972 308087 311805 328140 332592 355485 373715 379184 383760 415740 426582 437520 448458 473980 498888 525024 554320 568776 597944 616174 623610 656280 665184 672687 710970 747430 758368 767520 831480 853164 875040 896916 924261 947960 971659 997776 1066455 1108640 1121145 1137552 1195888 1232348 1247220 1312560 1345374 1421940 1494860 1540435 1662960 1706328 1793832 1848522 1895920 1943318 1995552 2132910 2242290 2275104 2391776 2464696 2494440 2625120 2690748 2772783 2843880 2914977 2989720 3080870 3325920 3363435 3412656 3587664 3697044 3791840 3886636 4265820 4484580 4621305 4858295 4929392 4988880 5381496 5545566 5687760 5829954 5979440 6161740 6726870 6825312 7175328 7394088 7773272 8531640 8744931 8969160 9242610 9716590 9858784 9977760 10762992 11091132 11375520 11659908 11958880 12323480 12631567 13453740 13863915 14574885 14788176 15546544 17063280 17489862 17938320 18485220 19433180 21525984 22182264 23319816 24646960 25263134 26907480 27727830 29149770 29576352 31093088 34126560 34979724 35876640 36970440 37894701 38866360 43724655 44364528 46639632 49293920 50526268 53814960 55455660 58299540 63157835 69959448 73940880 75789402 77732720 87449310 88729056 93279264 101052536 107629920 110911320 113684103 116599080 126315670 139918896 147881760 151578804 155465440 174898620 189473505 202105072 221822640 227368206 233198160 252631340 279837792 303157608 349797240 378947010 404210144 443645280 454736412 466396320 505262680 568420515 606315216 699594480 757894020 909472824 1010525360 1136841030 1212630432 1399188960 1515788040 1818945648 2021050720 2273682060 3031576080 3637891296 4547364120 6063152160 9094728240 18189456480
• Sum of all divisors σ(n): 68890663296
• Sum of proper divisors (its aliquot sum) s(n): 50701206816
• 18189456480 is an abundant number, because the sum of its proper divisors (50701206816) is greater than itself. Its abundance is 32511750336

Bases of 18189456480

• Binary: 10000111100001011010001010001100000₂
• Hexadecimal: 0x43C2D1460
• Base-36: 8CTJ6G0

Squares and roots of 18189456480

• 18189456480 squared (18189456480²) is 330856327037813990400
• 18189456480 cubed (18189456480³) is 6018096761786964892715937792000
• The square root of 18189456480 is 134868.2930862551
• The cube root of 18189456480 is 2629.9040710623

Scales and comparisons

• 18,189,456,480 seconds is equal to 578 years, 19 weeks, 1 day, 2 hours, 48 minutes.
• To count from 1 to 18,189,456,480 would take you about one thousand, one hundred fifty-six 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 18189456480 cubic inches would be around 219.2 feet tall.

Recreational maths with 18189456480

• 18189456480 backwards is 08465498181
• The number of decimal digits it has is: 11
• The sum of 18189456480's digits is 54
• More coming soon!