18139457160

Names of 18139457160

• Cardinal: 18139457160 can be written as Eighteen billion, one hundred thirty-nine million, four hundred fifty-seven thousand, one hundred sixty.

Scientific notation

• Scientific notation: 1.813945716 × 10¹⁰

Factors of 18139457160

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 17701

Divisors of 18139457160

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 60 66 72 88 90 99 110 120 132 165 180 198 220 263 264 330 360 396 440 495 526 660 789 792 990 1052 1315 1320 1578 1980 2104 2367 2630 2893 3156 3945 3960 4734 5260 5786 6312 7890 8679 9468 10520 11572 11835 14465 15780 17358 17417 18936 23144 23670 26037 28930 31560 34716 34834 43395 47340 52074 52251 57860 69432 69668 86790 87085 94680 104148 104502 115720 130185 139336 156753 173580 174170 191587 208296 209004 260370 261255 313506 347160 348340 383174 418008 520740 522510 574761 627012 696680 766348 783765 957935 1041480 1045020 1149522 1254024 1532696 1567530 1724283 1915870 2090040 2299044 2873805 3135060 3448566 3831740 4580671 4598088 5747610 6270120 6897132 7663480 8621415 9161342 11495220 13742013 13794264 17242830 18322684 22903355 22990440 27484026 34485660 36645368 41226039 45806710 50387381 54968052 68710065 68971320 82452078 91613420 100774762 109936104 137420130 151162143 164904156 183226840 201549524 206130195 251936905 274840260 302324286 329808312 403099048 412260390 453486429 503873810 549680520 604648572 755810715 824520780 906972858 1007747620 1209297144 1511621430 1649041560 1813945716 2015495240 2267432145 3023242860 3627891432 4534864290 6046485720 9069728580 18139457160
• Sum of all divisors σ(n): 64560862080
• Sum of proper divisors (its aliquot sum) s(n): 46421404920
• 18139457160 is an abundant number, because the sum of its proper divisors (46421404920) is greater than itself. Its abundance is 28281947760

Bases of 18139457160

• Binary: 10000111001001100100010011010001000₂
• Hexadecimal: 0x439322688
• Base-36: 8BZRIQ0

Squares and roots of 18139457160

• 18139457160 squared (18139457160²) is 329039906059475265600
• 18139457160 cubed (18139457160³) is 5968605279896275992430821696000
• The square root of 18139457160 is 134682.8020201541
• The cube root of 18139457160 is 2627.4921594683

Scales and comparisons

• 18,139,457,160 seconds is equal to 576 years, 40 weeks, 3 days, 10 hours, 6 minutes.
• To count from 1 to 18,139,457,160 would take you about one thousand, one hundred fifty-three 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 18139457160 cubic inches would be around 219 feet tall.

Recreational maths with 18139457160

• 18139457160 backwards is 06175493181
• 18139457160 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18139457160's digits is 45
• More coming soon!