428478427390

Names of 428478427390

• Cardinal: 428478427390 can be written as Four hundred twenty-eight billion, four hundred seventy-eight million, four hundred twenty-seven thousand, three hundred ninety.

Scientific notation

• Scientific notation: 4.2847842739 × 10¹¹

Factors of 428478427390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 204

Divisors of 428478427390

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 10 13 26 53 65 106 130 131 169 262 265 338 530 655 689 845 1310 1378 1690 1703 2197 2809 3406 3445 4394 5618 6890 6943 8515 8957 10985 13886 14045 17030 17914 21970 22139 28090 34715 36517 44278 44785 69430 73034 89570 90259 110695 116441 148877 180518 182585 221390 232882 287807 297754 365170 367979 451295 474721 575614 582205 735958 744385 902590 949442 1164410 1173367 1439035 1488770 1839895 1935401 2346734 2373605 2878070 3679790 3870802 4747210 4783727 5866835 6171373 9567454 9677005 11733670 12342746 15253771 19354010 19502887 23918635 25160213 30507542 30856865 39005774 47837270 50320426 61713730 62188451 76268855 97514435 124376902 125801065 152537710 195028870 251602130 253537531 310942255 327082769 507075062 621884510 654165538 808449863 1267687655 1616899726 1635413845 2535375310 3270827690 3295987903 4042249315 6591975806 8084498630 16479939515 32959879030 42847842739 85695685478 214239213695 428478427390
• Sum of all divisors σ(n): 858071491200
• Sum of proper divisors (its aliquot sum) s(n): 429593063810
• 428478427390 is an abundant number, because the sum of its proper divisors (429593063810) is greater than itself. Its abundance is 1114636420

Bases of 428478427390

• Binary: 110001111000011010011011111000011111110₂
• Hexadecimal: 0x63C34DF0FE
• Base-36: 5GU8ZQIM

Squares and roots of 428478427390

• 428478427390 squared (428478427390²) is 183593762738607502212100
• 428478427390 cubed (428478427390³) is 78665966736851322186296554229419000
• The square root of 428478427390 is 654582.6360284849
• The cube root of 428478427390 is 7538.9290095947

Scales and comparisons

• 428,478,427,390 seconds is equal to 13,624 years, 15 weeks, 1 hour, 23 minutes, 10 seconds.
• To count from 1 to 428,478,427,390 would take you about twenty-seven thousand, two hundred forty-eight 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 428478427390 cubic inches would be around 628.2 feet tall.

Recreational maths with 428478427390

• 428478427390 backwards is 093724874824
• The number of decimal digits it has is: 12
• The sum of 428478427390's digits is 58
• More coming soon!