1028911920

Names of 1028911920

• Cardinal: 1028911920 can be written as One billion, twenty-eight million, nine hundred eleven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.02891192 × 10⁹

Factors of 1028911920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10344

Divisors of 1028911920

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 433 866 1299 1732 2165 2598 3464 4330 5196 6495 6928 8660 9901 10392 12990 17320 19802 20784 25980 29703 34640 39604 49505 51960 59406 79208 99010 103920 118812 148515 158416 198020 237624 297030 396040 475248 594060 792080 1188120 2376240 4287133 8574266 12861399 17148532 21435665 25722798 34297064 42871330 51445596 64306995 68594128 85742660 102891192 128613990 171485320 205782384 257227980 342970640 514455960 1028911920
• Sum of all divisors σ(n): 3197316192
• Sum of proper divisors (its aliquot sum) s(n): 2168404272
• 1028911920 is an abundant number, because the sum of its proper divisors (2168404272) is greater than itself. Its abundance is 1139492352

Bases of 1028911920

• Binary: 111101010100111111001100110000₂
• Hexadecimal: 0x3D53F330
• Base-36: H0L5IO

Squares and roots of 1028911920

• 1028911920 squared (1028911920²) is 1058659739118086400
• 1028911920 cubed (1028911920³) is 1089267624802689384549888000
• The square root of 1028911920 is 32076.6569330409
• The cube root of 1028911920 is 1009.5458926467

Scales and comparisons

• 1,028,911,920 seconds is equal to 32 years, 37 weeks, 1 day, 16 hours, 52 minutes.
• To count from 1 to 1,028,911,920 would take you about sixty-five 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 1028911920 cubic inches would be around 84.1 feet tall.

Recreational maths with 1028911920

• 1028911920 backwards is 0291198201
• The number of decimal digits it has is: 10
• The sum of 1028911920's digits is 33
• More coming soon!