1285385088

Names of 1285385088

• Cardinal: 1285385088 can be written as One billion, two hundred eighty-five million, three hundred eighty-five thousand and eighty-eight.

Scientific notation

• Scientific notation: 1.285385088 × 10⁹

Factors of 1285385088

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 257507

Divisors of 1285385088

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 312 384 416 624 832 1248 1664 2496 4992 257489 514978 772467 1029956 1544934 2059912 3089868 3347357 4119824 6179736 6694714 8239648 10042071 12359472 13389428 16479296 20084142 24718944 26778856 32958592 40168284 49437888 53557712 80336568 98875776 107115424 160673136 214230848 321346272 428461696 642692544 1285385088
• Sum of all divisors σ(n): 3676957200
• Sum of proper divisors (its aliquot sum) s(n): 2391572112
• 1285385088 is an abundant number, because the sum of its proper divisors (2391572112) is greater than itself. Its abundance is 1106187024

Bases of 1285385088

• Binary: 1001100100111010110101110000000₂
• Hexadecimal: 0x4C9D6B80
• Base-36: L9A9HC

Squares and roots of 1285385088

• 1285385088 squared (1285385088²) is 1652214824452767744
• 1285385088 cubed (1285385088³) is 2123732297524125418465001472
• The square root of 1285385088 is 35852.2675433507
• The cube root of 1285385088 is 1087.2875598243

Scales and comparisons

• 1,285,385,088 seconds is equal to 40 years, 45 weeks, 2 days, 3 hours, 24 minutes, 48 seconds.
• To count from 1 to 1,285,385,088 would take you about eighty-one 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 1285385088 cubic inches would be around 90.6 feet tall.

Recreational maths with 1285385088

• 1285385088 backwards is 8805835821
• 1285385088 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1285385088's digits is 48
• More coming soon!