155225385

Names of 155225385

• Cardinal: 155225385 can be written as One hundred fifty-five million, two hundred twenty-five thousand, three hundred eighty-five.

Scientific notation

• Scientific notation: 1.55225385 × 10⁸

Factors of 155225385

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 174

Divisors of 155225385

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 7 9 15 17 21 35 41 45 49 51 63 85 101 105 119 123 147 153 205 245 255 287 303 315 357 369 441 505 595 615 697 707 735 765 833 861 909 1071 1435 1515 1717 1785 1845 2009 2091 2121 2205 2499 2583 3485 3535 4141 4165 4305 4545 4879 4949 5151 5355 6027 6273 6363 7497 8585 10045 10455 10605 12019 12423 12495 12915 14637 14847 15453 18081 20705 24395 24745 25755 28987 30135 31365 31815 34153 36057 37269 37485 43911 44541 60095 62115 70397 73185 74235 77265 84133 86961 90405 102459 108171 144935 170765 180285 186345 202909 211191 219555 222705 252399 260883 307377 351985 420665 434805 492779 512295 540855 608727 633573 757197 1014545 1055955 1261995 1304415 1478337 1536885 1826181 2463895 3043635 3167865 3449453 3785985 4435011 7391685 9130905 10348359 17247265 22175055 31045077 51741795 155225385
• Sum of all divisors σ(n): 342839952
• Sum of proper divisors (its aliquot sum) s(n): 187614567
• 155225385 is an abundant number, because the sum of its proper divisors (187614567) is greater than itself. Its abundance is 32389182

Bases of 155225385

• Binary: 1001010000001000110100101001₂
• Hexadecimal: 0x9408D29
• Base-36: 2KF0O9

Squares and roots of 155225385

• 155225385 squared (155225385²) is 24094920148398225
• 155225385 cubed (155225385³) is 3740143256579371608941625
• The square root of 155225385 is 12458.9479892967
• The cube root of 155225385 is 537.4287744095

Scales and comparisons

• 155,225,385 seconds is equal to 4 years, 48 weeks, 4 days, 14 hours, 9 minutes, 45 seconds.
• To count from 1 to 155,225,385 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 155225385 cubic inches would be around 44.8 feet tall.

Recreational maths with 155225385

• 155225385 backwards is 583522551
• The number of decimal digits it has is: 9
• The sum of 155225385's digits is 36
• More coming soon!