18989907216

Names of 18989907216

• Cardinal: 18989907216 can be written as Eighteen billion, nine hundred eighty-nine million, nine hundred seven thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.8989907216 × 10¹⁰

Factors of 18989907216

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1711

Divisors of 18989907216

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 89 112 168 178 267 336 356 534 623 691 712 919 1068 1246 1382 1424 1838 1869 2073 2136 2492 2757 2764 3676 3738 4146 4272 4837 4984 5514 5528 6433 7352 7476 8292 9674 9968 11028 11056 12866 14511 14704 14952 16584 19299 19348 22056 25732 29022 29904 33168 38598 38696 44112 51464 58044 61499 77196 77392 81791 102928 116088 122998 154392 163582 184497 232176 245373 245996 308784 327164 368994 430493 490746 491992 572537 635029 654328 737988 860986 981492 983984 1145074 1270058 1291479 1308656 1475976 1717611 1721972 1905087 1962984 2290148 2540116 2582958 2951952 3435222 3443944 3810174 3925968 4445203 4580296 5080232 5165916 6870444 6887888 7620348 8890406 9160592 10160464 10331832 13335609 13740888 15240696 17780812 20663664 26671218 27481776 30481392 35561624 53342436 56517581 71123248 106684872 113035162 169552743 213369744 226070324 339105486 395623067 452140648 678210972 791246134 904281296 1186869201 1356421944 1582492268 2373738402 2712843888 3164984536 4747476804 6329969072 9494953608 18989907216
• Sum of all divisors σ(n): 56839219200
• Sum of proper divisors (its aliquot sum) s(n): 37849311984
• 18989907216 is an abundant number, because the sum of its proper divisors (37849311984) is greater than itself. Its abundance is 18859404768

Bases of 18989907216

• Binary: 10001101011111000101111110100010000₂
• Hexadecimal: 0x46BE2FD10
• Base-36: 8Q23M6O

Squares and roots of 18989907216

• 18989907216 squared (18989907216²) is 360616576072288870656
• 18989907216 cubed (18989907216³) is 6848075320164371362506865053696
• The square root of 18989907216 is 137803.8722823127
• The cube root of 18989907216 is 2667.9290807999

Scales and comparisons

• 18,989,907,216 seconds is equal to 603 years, 42 weeks, 4 days, 14 hours, 13 minutes, 36 seconds.
• To count from 1 to 18,989,907,216 would take you about one thousand, two hundred 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 18989907216 cubic inches would be around 222.3 feet tall.

Recreational maths with 18989907216

• 18989907216 backwards is 61270998981
• The number of decimal digits it has is: 11
• The sum of 18989907216's digits is 60
• More coming soon!