428937390

Names of 428937390

• Cardinal: 428937390 can be written as Four hundred twenty-eight million, nine hundred thirty-seven thousand, three hundred ninety.

Scientific notation

• Scientific notation: 4.2893739 × 10⁸

Factors of 428937390

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7369

Divisors of 428937390

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 31 35 42 45 54 62 63 70 90 93 105 126 135 155 186 189 210 217 270 279 310 315 378 434 465 558 630 651 837 930 945 1085 1302 1395 1674 1890 1953 2170 2790 3255 3906 4185 5859 6510 7321 8370 9765 11718 14642 19530 21963 29295 36605 43926 51247 58590 65889 73210 102494 109815 131778 153741 197667 219630 226951 256235 307482 329445 395334 453902 461223 512470 658890 680853 768705 922446 988335 1134755 1361706 1383669 1537410 1588657 1976670 2042559 2269510 2306115 2767338 3177314 3404265 4085118 4612230 4765971 6127677 6808530 6918345 7943285 9531942 10212795 12255354 13836690 14297913 15886570 20425590 23829855 28595826 30638385 42893739 47659710 61276770 71489565 85787478 142979130 214468695 428937390
• Sum of all divisors σ(n): 1349591040
• Sum of proper divisors (its aliquot sum) s(n): 920653650
• 428937390 is an abundant number, because the sum of its proper divisors (920653650) is greater than itself. Its abundance is 491716260

Bases of 428937390

• Binary: 11001100100010001000010101110₂
• Hexadecimal: 0x199110AE
• Base-36: 73DM7I

Squares and roots of 428937390

• 428937390 squared (428937390²) is 183987284540012100
• 428937390 cubed (428937390³) is 78919025623780140742419000
• The square root of 428937390 is 20710.8037024159
• The cube root of 428937390 is 754.1619811611

Scales and comparisons

• 428,937,390 seconds is equal to 13 years, 33 weeks, 1 day, 13 hours, 16 minutes, 30 seconds.
• To count from 1 to 428,937,390 would take you about twenty 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 428937390 cubic inches would be around 62.8 feet tall.

Recreational maths with 428937390

• 428937390 backwards is 093739824
• 428937390 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 428937390's digits is 45
• More coming soon!