18972109089

Names of 18972109089

• Cardinal: 18972109089 can be written as Eighteen billion, nine hundred seventy-two million, one hundred nine thousand and eighty-nine.

Scientific notation

• Scientific notation: 1.8972109089 × 10¹⁰

Factors of 18972109089

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 110

Divisors of 18972109089

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 9 17 27 31 51 59 81 93 153 177 243 279 459 527 531 729 837 961 1003 1377 1581 1593 1829 2187 2511 2883 3009 4131 4743 4779 5487 6561 7533 8649 9027 12393 14229 14337 16337 16461 19683 22599 25947 27081 31093 37179 42687 43011 49011 49383 56699 67797 77841 81243 93279 111537 128061 129033 147033 148149 170097 203391 233523 243729 279837 334611 384183 387099 441099 444447 510291 610173 700569 731187 839511 963883 1152549 1161297 1323297 1333341 1530873 2101707 2193561 2518533 2891649 3457647 3969891 4000023 4592619 6305121 6580683 7555599 8674947 10372941 11909673 12000069 13777857 18915363 19742049 22666797 26024841 35729019 36000207 41333571 68000391 78074523 107187057 124000713 204001173 234223569 321561171 372002139 612003519 702670707 1116006417 2108012121 6324036363 18972109089
• Sum of all divisors σ(n): 31662718560
• Sum of proper divisors (its aliquot sum) s(n): 12690609471
• 18972109089 is a deficient number, because the sum of its proper divisors (12690609471) is less than itself. Its deficiency is 6281499618

Bases of 18972109089

• Binary: 10001101010110100110110100100100001₂
• Hexadecimal: 0x46AD36921
• Base-36: 8PRI529

Squares and roots of 18972109089

• 18972109089 squared (18972109089²) is 359940923284916409921
• 18972109089 cubed (18972109089³) is 6828838462156814357267453871969
• The square root of 18972109089 is 137739.2793977085
• The cube root of 18972109089 is 2667.0953224163

Scales and comparisons

• 18,972,109,089 seconds is equal to 603 years, 13 weeks, 1 day, 14 hours, 18 minutes, 9 seconds.
• To count from 1 to 18,972,109,089 would take you about one thousand, two hundred six 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 18972109089 cubic inches would be around 222.3 feet tall.

Recreational maths with 18972109089

• 18972109089 backwards is 98090127981
• The number of decimal digits it has is: 11
• The sum of 18972109089's digits is 54
• More coming soon!