1428817390

Names of 1428817390

• Cardinal: 1428817390 can be written as One billion, four hundred twenty-eight million, eight hundred seventeen thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.42881739 × 10⁹

Factors of 1428817390

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3122

Divisors of 1428817390

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 7 10 11 13 14 22 26 35 47 55 65 70 77 91 94 110 130 143 154 182 235 286 329 385 455 470 517 611 658 715 770 910 1001 1034 1222 1430 1645 2002 2585 3037 3055 3290 3619 4277 5005 5170 6074 6110 6721 7238 8554 10010 13442 15185 18095 21259 21385 30370 33407 33605 36190 39481 42518 42770 47047 66814 67210 78962 94094 106295 142739 167035 197405 212590 233849 235235 276367 285478 334070 394810 434291 467698 470470 552734 713695 868582 999173 1169245 1381835 1427390 1570129 1855607 1998346 2171455 2338490 2763670 3040037 3140258 3711214 4342910 4995865 6080074 7850645 9278035 9991730 10990903 12989249 15200185 15701290 18556070 20411677 21981806 25978498 30400370 40823354 54954515 64946245 102058385 109909030 129892490 142881739 204116770 285763478 714408695 1428817390
• Sum of all divisors σ(n): 3527774208
• Sum of proper divisors (its aliquot sum) s(n): 2098956818
• 1428817390 is an abundant number, because the sum of its proper divisors (2098956818) is greater than itself. Its abundance is 670139428

Bases of 1428817390

• Binary: 1010101001010100000010111101110₂
• Hexadecimal: 0x552A05EE
• Base-36: NMOIJY

Squares and roots of 1428817390

• 1428817390 squared (1428817390²) is 2041519133966412100
• 1428817390 cubed (1428817390³) is 2916958040628949284386419000
• The square root of 1428817390 is 37799.7009247427
• The cube root of 1428817390 is 1126.3125132265

Scales and comparisons

• 1,428,817,390 seconds is equal to 45 years, 22 weeks, 3 days, 5 hours, 43 minutes, 10 seconds.
• To count from 1 to 1,428,817,390 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 1428817390 cubic inches would be around 93.9 feet tall.

Recreational maths with 1428817390

• 1428817390 backwards is 0937188241
• The number of decimal digits it has is: 10
• The sum of 1428817390's digits is 43
• More coming soon!