18038953989

Names of 18038953989

• Cardinal: 18038953989 can be written as Eighteen billion, thirty-eight million, nine hundred fifty-three thousand, nine hundred eighty-nine.

Scientific notation

• Scientific notation: 1.8038953989 × 10¹⁰

Factors of 18038953989

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1194

Divisors of 18038953989

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 19 21 27 37 57 63 111 133 137 171 189 259 333 399 411 513 703 777 959 991 999 1197 1233 2109 2331 2603 2877 2973 3591 3699 4921 5069 6327 6937 6993 7809 8631 8919 14763 15207 18221 18829 18981 20811 23427 25893 26757 35483 36667 44289 45621 54663 56487 62433 70281 96311 106449 110001 131803 132867 135767 136863 163989 169461 187299 256669 288933 319347 330003 395409 407301 491967 508383 674177 696673 770007 866799 950369 958041 990009 1186227 1221903 2022531 2090019 2310021 2579573 2600397 2851107 3558681 3665709 4876711 5023379 6067593 6270057 6930063 7738719 8553321 14630133 15070137 18057011 18202779 18810171 23216157 25659963 35163653 43890399 45210411 54171033 69648471 95444201 105490959 131671197 135631233 162513099 286332603 316472877 487539297 668109407 858997809 949418631 2004328221 2576993427 6012984663 18038953989
• Sum of all divisors σ(n): 33293107200
• Sum of proper divisors (its aliquot sum) s(n): 15254153211
• 18038953989 is a deficient number, because the sum of its proper divisors (15254153211) is less than itself. Its deficiency is 2784800778

Bases of 18038953989

• Binary: 10000110011001101001001100000000101₂
• Hexadecimal: 0x433349805
• Base-36: 8ABXDZ9

Squares and roots of 18038953989

• 18038953989 squared (18038953989²) is 325403861017259012121
• 18038953989 cubed (18038953989³) is 5869945276733286054546312300669
• The square root of 18038953989 is 134309.1731379507
• The cube root of 18038953989 is 2622.6305567343

Scales and comparisons

• 18,038,953,989 seconds is equal to 573 years, 30 weeks, 2 days, 4 hours, 33 minutes, 9 seconds.
• To count from 1 to 18,038,953,989 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 18038953989 cubic inches would be around 218.6 feet tall.

Recreational maths with 18038953989

• 18038953989 backwards is 98935983081
• 18038953989 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18038953989's digits is 63
• More coming soon!