18005604372

Names of 18005604372

• Cardinal: 18005604372 can be written as Eighteen billion, five million, six hundred four thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 1.8005604372 × 10¹⁰

Factors of 18005604372

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 582

Divisors of 18005604372

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 19 21 23 27 28 36 37 38 42 46 54 57 63 69 74 76 81 84 92 108 111 114 126 133 138 148 161 162 171 189 207 222 228 252 259 266 276 322 324 333 342 378 399 414 437 444 483 491 513 518 532 567 621 644 666 684 703 756 777 798 828 851 874 966 982 999 1026 1036 1134 1197 1242 1311 1332 1406 1449 1473 1539 1554 1596 1702 1748 1863 1932 1964 1998 2052 2109 2268 2331 2394 2484 2553 2622 2812 2898 2946 2997 3059 3078 3108 3404 3437 3591 3726 3933 3996 4218 4347 4419 4662 4788 4921 5106 5244 5796 5892 5957 5994 6118 6156 6327 6874 6993 7182 7452 7659 7866 8436 8694 8838 9177 9324 9329 9842 10212 10311 10773 11293 11799 11914 11988 12236 12654 13041 13257 13748 13986 14364 14763 15318 15732 16169 17388 17676 17871 18167 18354 18658 18981 19684 20622 20979 21546 22586 22977 23598 23828 25308 26082 26514 27531 27972 27987 29526 30636 30933 32338 33879 35397 35742 36334 36708 37316 37962 39771 41244 41958 43092 44289 45172 45954 47196 48507 52164 53028 53613 54501 55062 55974 56943 59052 61866 64676 65303 67758 68931 70794 71484 72668 75924 79051 79542 82593 83916 83961 88578 91908 92799 97014 101637 107226 109002 110124 111948 113183 113886 123732 127169 130606 132867 135516 137862 141588 145521 158102 159084 160839 163503 165186 167922 177156 185598 194028 195909 203274 214452 214567 218004 226366 227772 237153 247779 251883 254338 261212 265734 275724 278397 291042 304911 316204 321678 327006 330372 335844 339549 345173 371196 381507 391818 398601 406548 417841 429134 436563 452732 474306 482517 490509 495558 503766 508676 531468 556794 582084 587727 609822 643356 643701 654012 679098 690346 711459 755649 763014 783636 797202 835682 858268 873126 914733 948612 965034 981018 991116 1007532 1018647 1035519 1113588 1144521 1175454 1219644 1253523 1287402 1309689 1358196 1380692 1422918 1471527 1501969 1511298 1526028 1594404 1671364 1746252 1763181 1829466 1930068 1931103 1962036 2037294 2071038 2134377 2289042 2350908 2416211 2507046 2574804 2619378 2845836 2924887 2943054 3003938 3022596 3055941 3106557 3433563 3526362 3658932 3760569 3862206 4074588 4142076 4268754 4505907 4578084 4832422 5014092 5238756 5289543 5793309 5849774 5886108 6007876 6111882 6213114 6403131 6867126 7052724 7248633 7521138 7724412 7938979 8537508 8774661 9011814 9167823 9319671 9664844 10300689 10579086 11281707 11586618 11699548 12223764 12426228 12806262 13517721 13734252 14497266 15042276 15877958 17379927 17549322 18023628 18335646 18639342 20601378 21158172 21745899 22563414 23173236 23816937 25612524 26323983 27035442 27959013 28994532 31755916 33845121 34759854 35098644 36671292 37278684 40553163 41202756 43491798 45126828 47633874 52647966 54070884 55572853 55918026 65237697 67690242 69519708 71450811 78971949 81106326 86983596 95267748 105295932 111145706 111836052 121659489 130475394 135380484 142901622 157943898 162212652 166718559 195713091 214352433 222291412 236915847 243318978 260950788 285803244 315887796 333437118 391426182 428704866 473831694 486637956 500155677 643057299 666874236 782852364 857409732 947663388 1000311354 1286114598 1500467031 2000622708 2572229196 3000934062 4501401093 6001868124 9002802186 18005604372
• Sum of all divisors σ(n): 60808366080
• Sum of proper divisors (its aliquot sum) s(n): 42802761708
• 18005604372 is an abundant number, because the sum of its proper divisors (42802761708) is greater than itself. Its abundance is 24797157336

Bases of 18005604372

• Binary: 10000110001001101111011100000010100₂
• Hexadecimal: 0x43137B814
• Base-36: 89S2L90

Squares and roots of 18005604372

• 18005604372 squared (18005604372²) is 324201788800985514384
• 18005604372 cubed (18005604372³) is 5837449145845245415701219286848
• The square root of 18005604372 is 134184.9632857573
• The cube root of 18005604372 is 2621.0133587571

Scales and comparisons

• 18,005,604,372 seconds is equal to 572 years, 27 weeks, 1 day, 4 hours, 46 minutes, 12 seconds.
• To count from 1 to 18,005,604,372 would take you about one thousand, one hundred forty-five 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 18005604372 cubic inches would be around 218.4 feet tall.

Recreational maths with 18005604372

• 18005604372 backwards is 27340650081
• 18005604372 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18005604372's digits is 36
• More coming soon!