385801728

Names of 385801728

• Cardinal: 385801728 can be written as Three hundred eighty-five million, eight hundred one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 3.85801728 × 10⁸

Factors of 385801728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 157

Divisors of 385801728

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 139 156 192 208 256 278 312 384 416 417 512 556 624 768 832 834 1112 1248 1536 1664 1668 1807 2224 2496 3328 3336 3614 4448 4992 5421 6656 6672 7228 8896 9984 10842 13344 14456 17792 19321 19968 21684 26688 28912 35584 38642 43368 53376 57824 57963 71168 77284 86736 106752 115648 115926 154568 173472 213504 231296 231852 251173 309136 346944 462592 463704 502346 618272 693888 753519 925184 927408 1004692 1236544 1387776 1507038 1854816 2009384 2473088 2775552 3014076 3709632 4018768 4946176 6028152 7419264 8037536 9892352 12056304 14838528 16075072 24112608 29677056 32150144 48225216 64300288 96450432 128600576 192900864 385801728
• Sum of all divisors σ(n): 1114881768
• Sum of proper divisors (its aliquot sum) s(n): 729080040
• 385801728 is an abundant number, because the sum of its proper divisors (729080040) is greater than itself. Its abundance is 343278312

Bases of 385801728

• Binary: 10110111111101101111000000000₂
• Hexadecimal: 0x16FEDE00
• Base-36: 6DP2IO

Squares and roots of 385801728

• 385801728 squared (385801728²) is 148842973327785984
• 385801728 cubed (385801728³) is 57423876310517743041380352
• The square root of 385801728 is 19641.8361667131
• The cube root of 385801728 is 727.9832544553

Scales and comparisons

• 385,801,728 seconds is equal to 12 years, 13 weeks, 6 days, 7 hours, 8 minutes, 48 seconds.
• To count from 1 to 385,801,728 would take you about eighteen 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 385801728 cubic inches would be around 60.7 feet tall.

Recreational maths with 385801728

• 385801728 backwards is 827108583
• The number of decimal digits it has is: 9
• The sum of 385801728's digits is 42
• More coming soon!