155380140

Names of 155380140

• Cardinal: 155380140 can be written as One hundred fifty-five million, three hundred eighty thousand, one hundred forty.

Scientific notation

• Scientific notation: 1.5538014 × 10⁸

Factors of 155380140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1900

Divisors of 155380140

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 167 180 270 334 501 540 668 835 1002 1503 1670 1723 2004 2505 3006 3340 3446 4509 5010 5169 6012 6892 7515 8615 9018 10020 10338 15030 15507 17230 18036 20676 22545 25845 30060 31014 34460 45090 46521 51690 62028 77535 90180 93042 103380 155070 186084 232605 287741 310140 465210 575482 863223 930420 1150964 1438705 1726446 2589669 2877410 3452892 4316115 5179338 5754820 7769007 8632230 10358676 12948345 15538014 17264460 25896690 31076028 38845035 51793380 77690070 155380140
• Sum of all divisors σ(n): 486581760
• Sum of proper divisors (its aliquot sum) s(n): 331201620
• 155380140 is an abundant number, because the sum of its proper divisors (331201620) is greater than itself. Its abundance is 175821480

Bases of 155380140

• Binary: 1001010000101110100110101100₂
• Hexadecimal: 0x942E9AC
• Base-36: 2KIC30

Squares and roots of 155380140

• 155380140 squared (155380140²) is 24142987906419600
• 155380140 cubed (155380140³) is 3751340840917784346744000
• The square root of 155380140 is 12465.1570387219
• The cube root of 155380140 is 537.6073151507

Scales and comparisons

• 155,380,140 seconds is equal to 4 years, 48 weeks, 6 days, 9 hours, 9 minutes.
• To count from 1 to 155,380,140 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 155380140 cubic inches would be around 44.8 feet tall.

Recreational maths with 155380140

• 155380140 backwards is 041083551
• 155380140 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 155380140's digits is 27
• More coming soon!