155864105440

Names of 155864105440

• Cardinal: 155864105440 can be written as One hundred fifty-five billion, eight hundred sixty-four million, one hundred five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.5586410544 × 10¹¹

Factors of 155864105440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 23176

Divisors of 155864105440

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 79 80 158 160 316 395 547 632 790 1094 1264 1580 2188 2528 2735 3160 4376 5470 6320 8752 10940 12640 17504 21880 22543 43213 43760 45086 86426 87520 90172 112715 172852 180344 216065 225430 345704 360688 432130 450860 691408 721376 864260 901720 1382816 1728520 1780897 1803440 3457040 3561794 3606880 6914080 7123588 8904485 12331021 14247176 17808970 24662042 28494352 35617940 49324084 56988704 61655105 71235880 98648168 123310210 142471760 197296336 246620420 284943520 394592672 493240840 974150659 986481680 1948301318 1972963360 3896602636 4870753295 7793205272 9741506590 15586410544 19483013180 31172821088 38966026360 77932052720 155864105440
• Sum of all divisors σ(n): 373588346880
• Sum of proper divisors (its aliquot sum) s(n): 217724241440
• 155864105440 is an abundant number, because the sum of its proper divisors (217724241440) is greater than itself. Its abundance is 61860136000

Bases of 155864105440

• Binary: 10010001001010001110011000000111100000₂
• Hexadecimal: 0x244A3981E0
• Base-36: 1ZLPGPGG

Squares and roots of 155864105440

• 155864105440 squared (155864105440²) is 24293619364611437593600
• 155864105440 cubed (155864105440³) is 3786503250165022913718850269184000
• The square root of 155864105440 is 394796.2834678159
• The cube root of 155864105440 is 5381.6490184241

Scales and comparisons

• 155,864,105,440 seconds is equal to 4,955 years, 51 weeks, 5 days, 16 hours, 50 minutes, 40 seconds.
• To count from 1 to 155,864,105,440 would take you about nine thousand, nine hundred eleven 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 155864105440 cubic inches would be around 448.5 feet tall.

Recreational maths with 155864105440

• 155864105440 backwards is 044501468551
• The number of decimal digits it has is: 12
• The sum of 155864105440's digits is 43
• More coming soon!