1428491900

Names of 1428491900

• Cardinal: 1428491900 can be written as One billion, four hundred twenty-eight million, four hundred ninety-one thousand, nine hundred.

Scientific notation

• Scientific notation: 1.4284919 × 10⁹

Factors of 1428491900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 428

Divisors of 1428491900

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 10 11 20 22 25 44 50 55 61 100 110 122 220 244 275 305 349 550 610 671 698 1100 1220 1342 1396 1525 1745 2684 3050 3355 3490 3721 3839 6100 6710 6980 7442 7678 8725 13420 14884 15356 16775 17450 18605 19195 21289 33550 34900 37210 38390 40931 42578 67100 74420 76780 81862 85156 93025 95975 106445 163724 186050 191950 204655 212890 234179 372100 383900 409310 425780 468358 532225 818620 936716 1023275 1064450 1170895 1298629 2046550 2128900 2341790 2597258 4093100 4683580 5194516 5854475 6493145 11708950 12986290 14284919 23417900 25972580 28569838 32465725 57139676 64931450 71424595 129862900 142849190 285698380 357122975 714245950 1428491900
• Sum of all divisors σ(n): 3447826200
• Sum of proper divisors (its aliquot sum) s(n): 2019334300
• 1428491900 is an abundant number, because the sum of its proper divisors (2019334300) is greater than itself. Its abundance is 590842400

Bases of 1428491900

• Binary: 1010101001001010000111001111100₂
• Hexadecimal: 0x55250E7C
• Base-36: NMHJEK

Squares and roots of 1428491900

• 1428491900 squared (1428491900²) is 2040589108365610000
• 1428491900 cubed (1428491900³) is 2914965012528496123559000000
• The square root of 1428491900 is 37795.3952221695
• The cube root of 1428491900 is 1126.2269806493

Scales and comparisons

• 1,428,491,900 seconds is equal to 45 years, 21 weeks, 6 days, 11 hours, 18 minutes, 20 seconds.
• To count from 1 to 1,428,491,900 would take you about ninety 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 1428491900 cubic inches would be around 93.9 feet tall.

Recreational maths with 1428491900

• 1428491900 backwards is 0091948241
• The number of decimal digits it has is: 10
• The sum of 1428491900's digits is 38
• More coming soon!