385661380

Names of 385661380

• Cardinal: 385661380 can be written as Three hundred eighty-five million, six hundred sixty-one thousand, three hundred eighty.

Scientific notation

• Scientific notation: 3.8566138 × 10⁸

Factors of 385661380

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 218

Divisors of 385661380

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 13 20 26 52 65 67 130 131 134 169 260 262 268 335 338 524 655 670 676 845 871 1310 1340 1690 1703 1742 2197 2620 3380 3406 3484 4355 4394 6812 8515 8710 8777 8788 10985 11323 17030 17420 17554 21970 22139 22646 34060 35108 43885 43940 44278 45292 56615 87770 88556 110695 113230 114101 147199 175540 221390 226460 228202 287807 294398 442780 456404 570505 575614 588796 735995 1141010 1151228 1439035 1471990 1483313 2282020 2878070 2943980 2966626 5756140 5933252 7416565 14833130 19283069 29666260 38566138 77132276 96415345 192830690 385661380
• Sum of all divisors σ(n): 897240960
• Sum of proper divisors (its aliquot sum) s(n): 511579580
• 385661380 is an abundant number, because the sum of its proper divisors (511579580) is greater than itself. Its abundance is 125918200

Bases of 385661380

• Binary: 10110111111001011100111000100₂
• Hexadecimal: 0x16FCB9C4
• Base-36: 6DM284

Squares and roots of 385661380

• 385661380 squared (385661380²) is 148734700023504400
• 385661380 cubed (385661380³) is 57361229664950739340072000
• The square root of 385661380 is 19638.2631614917
• The cube root of 385661380 is 727.8949678405

Scales and comparisons

• 385,661,380 seconds is equal to 12 years, 13 weeks, 4 days, 16 hours, 9 minutes, 40 seconds.
• To count from 1 to 385,661,380 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 385661380 cubic inches would be around 60.7 feet tall.

Recreational maths with 385661380

• 385661380 backwards is 083166583
• The number of decimal digits it has is: 9
• The sum of 385661380's digits is 40
• More coming soon!