28400960

Names of 28400960

• Cardinal: 28400960 can be written as Twenty-eight million, four hundred thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.840096 × 10⁷

Factors of 28400960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 454

Divisors of 28400960

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 56 62 64 70 80 112 124 140 155 160 217 224 248 280 310 320 409 434 448 496 560 620 818 868 992 1085 1120 1240 1636 1736 1984 2045 2170 2240 2480 2863 3272 3472 4090 4340 4960 5726 6544 6944 8180 8680 9920 11452 12679 13088 13888 14315 16360 17360 22904 25358 26176 28630 32720 34720 45808 50716 57260 63395 65440 69440 88753 91616 101432 114520 126790 130880 177506 183232 202864 229040 253580 355012 405728 443765 458080 507160 710024 811456 887530 916160 1014320 1420048 1775060 2028640 2840096 3550120 4057280 5680192 7100240 14200480 28400960
• Sum of all divisors σ(n): 79979520
• Sum of proper divisors (its aliquot sum) s(n): 51578560
• 28400960 is an abundant number, because the sum of its proper divisors (51578560) is greater than itself. Its abundance is 23177600

Bases of 28400960

• Binary: 1101100010101110101000000₂
• Hexadecimal: 0x1B15D40
• Base-36: GWQBK

Squares and roots of 28400960

• 28400960 squared (28400960²) is 806614528921600
• 28400960 cubed (28400960³) is 22908626971321204736000
• The square root of 28400960 is 5329.2551074235
• The cube root of 28400960 is 305.1014980659

Scales and comparisons

• 28,400,960 seconds is equal to 46 weeks, 6 days, 17 hours, 9 minutes, 20 seconds.
• To count from 1 to 28,400,960 would take you about eighteen weeks!

  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 28400960 cubic inches would be around 25.4 feet tall.

Recreational maths with 28400960

• 28400960 backwards is 06900482
• The number of decimal digits it has is: 8
• The sum of 28400960's digits is 29
• More coming soon!