18049507749

Names of 18049507749

• Cardinal: 18049507749 can be written as Eighteen billion, forty-nine million, five hundred seven thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 1.8049507749 × 10¹⁰

Factors of 18049507749

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 473

Divisors of 18049507749

• Number of divisors d(n): 180
• Complete list of divisors:
  1 3 7 9 13 21 27 39 49 63 71 81 91 117 147 169 189 213 273 351 379 441 497 507 567 637 639 819 923 1053 1137 1183 1323 1491 1521 1911 1917 2457 2653 2769 3411 3479 3549 3969 4473 4563 4927 5733 5751 6461 7371 7959 8281 8307 10233 10437 10647 11999 13419 13689 14781 17199 18571 19383 23877 24843 24921 26909 30699 31311 31941 34489 35997 40257 44343 45227 51597 55713 58149 64051 71631 74529 74763 80727 83993 93933 95823 103467 107991 133029 135681 167139 174447 188363 192153 214893 223587 241423 242181 251979 281799 310401 323973 349817 399087 407043 448357 501417 523341 565089 576459 587951 670761 724269 726543 755937 931203 971919 1049451 1221129 1318541 1345071 1504251 1695267 1729377 1763853 2172807 2179629 2267811 2448719 2793609 3138499 3148353 3663387 3955623 4035213 4547621 5085801 5188131 5291559 6518421 6803433 7346157 9415497 9445059 11866869 12105639 13642863 15257403 15874677 17141033 19555263 22038471 28246491 28335177 31833347 35600607 36316917 40928589 47624031 51423099 66115413 84739473 95500041 106801821 122785767 154269297 198346239 222833429 254218419 286500123 368357301 462807891 668500287 859500369 1388423673 2005500861 2578501107 6016502583 18049507749
• Sum of all divisors σ(n): 34532451360
• Sum of proper divisors (its aliquot sum) s(n): 16482943611
• 18049507749 is a deficient number, because the sum of its proper divisors (16482943611) is less than itself. Its deficiency is 1566564138

Bases of 18049507749

• Binary: 10000110011110101011010000110100101₂
• Hexadecimal: 0x433D5A1A5
• Base-36: 8AI7LB9

Squares and roots of 18049507749

• 18049507749 squared (18049507749²) is 325784729981211047001
• 18049507749 cubed (18049507749³) is 5880254008301741417248952710749
• The square root of 18049507749 is 134348.4564444267
• The cube root of 18049507749 is 2623.1419170829

Scales and comparisons

• 18,049,507,749 seconds is equal to 573 years, 47 weeks, 5 days, 8 hours, 9 minutes, 9 seconds.
• To count from 1 to 18,049,507,749 would take you about one thousand, one hundred forty-seven 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 18049507749 cubic inches would be around 218.6 feet tall.

Recreational maths with 18049507749

• 18049507749 backwards is 94770594081
• The number of decimal digits it has is: 11
• The sum of 18049507749's digits is 54
• More coming soon!