18090144644

Names of 18090144644

• Cardinal: 18090144644 can be written as Eighteen billion, ninety million, one hundred forty-four thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 1.8090144644 × 10¹⁰

Factors of 18090144644

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 361

Divisors of 18090144644

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 11 13 19 22 23 26 38 44 46 52 76 92 143 169 209 247 253 286 293 299 338 361 418 437 494 506 572 586 598 676 722 836 874 988 1012 1172 1196 1444 1748 1859 2717 3211 3223 3289 3718 3809 3887 3971 4693 4807 5434 5567 5681 6422 6446 6578 6739 7436 7618 7774 7942 8303 9386 9614 10868 11134 11362 12844 12892 13156 13478 15236 15548 15884 16606 18772 19228 22268 22724 26956 33212 35321 41899 42757 49517 51623 61009 61237 62491 70642 72371 73853 74129 83798 85514 87607 91333 99034 103246 105773 107939 122018 122474 124982 128041 141284 144742 147706 148258 167596 171028 175214 182666 198068 206492 211546 215878 244036 244948 249964 256082 289484 295412 296516 350428 365332 423092 431756 512164 544687 671099 796081 812383 940823 963677 1089374 1138891 1163503 1187329 1342198 1375049 1403207 1408451 1592162 1624766 1664533 1881646 1927354 2178748 2277782 2327006 2374658 2432779 2684396 2750098 2806414 2816902 3184324 3249532 3329066 3763292 3854708 4555564 4654012 4749316 4865558 5500196 5612828 5633804 6658132 9731116 10349053 12527801 15125539 15435277 17875637 18309863 20698106 21638929 25055602 26760569 30251078 30870554 31626127 35751274 36619726 41396212 43277858 50111204 53521138 60502156 61741108 63252254 71502548 73239452 86555716 107042276 126504508 196632007 238028219 347887397 393264014 411139651 476056438 695774794 786528028 822279302 952112876 1391549588 1644558604 4522536161 9045072322 18090144644
• Sum of all divisors σ(n): 41325100992
• Sum of proper divisors (its aliquot sum) s(n): 23234956348
• 18090144644 is an abundant number, because the sum of its proper divisors (23234956348) is greater than itself. Its abundance is 5144811704

Bases of 18090144644

• Binary: 10000110110010000011011001110000100₂
• Hexadecimal: 0x43641B384
• Base-36: 8B6EKXW

Squares and roots of 18090144644

• 18090144644 squared (18090144644²) is 327253333240841886736
• 18090144644 cubed (18090144644³) is 5920060133557963019388105041984
• The square root of 18090144644 is 134499.6083414373
• The cube root of 18090144644 is 2625.1090334273

Scales and comparisons

• 18,090,144,644 seconds is equal to 575 years, 10 weeks, 6 days, 16 hours, 10 minutes, 44 seconds.
• To count from 1 to 18,090,144,644 would take you about one thousand, one hundred fifty 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 18090144644 cubic inches would be around 218.8 feet tall.

Recreational maths with 18090144644

• 18090144644 backwards is 44644109081
• The number of decimal digits it has is: 11
• The sum of 18090144644's digits is 41
• More coming soon!