155838162818

Names of 155838162818

• Cardinal: 155838162818 can be written as One hundred fifty-five billion, eight hundred thirty-eight million, one hundred sixty-two thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.55838162818 × 10¹¹

Factors of 155838162818

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 22731

Divisors of 155838162818

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 13 17 26 34 113 139 221 226 278 442 1469 1807 1921 2363 2938 3614 3842 4726 15707 22447 24973 30719 31414 44894 49946 61438 204191 267019 291811 381599 408382 534038 583622 763198 2536511 3120133 3471247 4960787 5073022 6240266 6942494 9921574 32974643 40561729 43120687 53042261 65949286 81123458 86241374 106084522 352575029 560568931 689549393 705150058 1121137862 1379098786 4583475377 5993775493 9166950754 11987550986 77919081409 155838162818
• Sum of all divisors σ(n): 270852180480
• Sum of proper divisors (its aliquot sum) s(n): 115014017662
• 155838162818 is a deficient number, because the sum of its proper divisors (115014017662) is less than itself. Its deficiency is 40824145156

Bases of 155838162818

• Binary: 10010001001000101011011010011110000010₂
• Hexadecimal: 0x2448ADA782
• Base-36: 1ZLA0O02

Squares and roots of 155838162818

• 155838162818 squared (155838162818²) is 24285532990489477701124
• 155838162818 cubed (155838162818³) is 3784612844293809671503542253607432
• The square root of 155838162818 is 394763.4263935807
• The cube root of 155838162818 is 5381.3504210605

Scales and comparisons

• 155,838,162,818 seconds is equal to 4,955 years, 8 weeks, 6 days, 10 hours, 33 minutes, 38 seconds.
• To count from 1 to 155,838,162,818 would take you about nine thousand, nine hundred ten 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 155838162818 cubic inches would be around 448.4 feet tall.

Recreational maths with 155838162818

• 155838162818 backwards is 818261838551
• The number of decimal digits it has is: 12
• The sum of 155838162818's digits is 56
• More coming soon!