155409030

Names of 155409030

• Cardinal: 155409030 can be written as One hundred fifty-five million, four hundred nine thousand and thirty.

Scientific notation

• Scientific notation: 1.5540903 × 10⁸

Factors of 155409030

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 27426

Divisors of 155409030

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 270 315 378 405 567 630 810 945 1134 1890 2835 5670 27409 54818 82227 137045 164454 191863 246681 274090 383726 411135 493362 575589 740043 822270 959315 1151178 1233405 1480086 1726767 1918630 2220129 2466810 2877945 3453534 3700215 4440258 5180301 5755890 7400430 8633835 10360602 11100645 15540903 17267670 22201290 25901505 31081806 51803010 77704515 155409030
• Sum of all divisors σ(n): 477591840
• Sum of proper divisors (its aliquot sum) s(n): 322182810
• 155409030 is an abundant number, because the sum of its proper divisors (322182810) is greater than itself. Its abundance is 166773780

Bases of 155409030

• Binary: 1001010000110101101010000110₂
• Hexadecimal: 0x9435A86
• Base-36: 2KIYDI

Squares and roots of 155409030

• 155409030 squared (155409030²) is 24151966605540900
• 155409030 cubed (155409030³) is 3753433702759503894327000
• The square root of 155409030 is 12466.3158150273
• The cube root of 155409030 is 537.6406323921

Scales and comparisons

• 155,409,030 seconds is equal to 4 years, 48 weeks, 6 days, 17 hours, 10 minutes, 30 seconds.
• To count from 1 to 155,409,030 would take you about 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 155409030 cubic inches would be around 44.8 feet tall.

Recreational maths with 155409030

• 155409030 backwards is 030904551
• 155409030 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 155409030's digits is 27
• More coming soon!