428315628

Names of 428315628

• Cardinal: 428315628 can be written as Four hundred twenty-eight million, three hundred fifteen thousand, six hundred twenty-eight.

Scientific notation

• Scientific notation: 4.28315628 × 10⁸

Factors of 428315628

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1808

Divisors of 428315628

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 12 13 26 39 52 78 127 156 169 254 338 381 507 508 676 762 1014 1524 1651 1663 2028 3302 3326 4953 4989 6604 6652 9906 9978 19812 19956 21463 21619 42926 43238 64389 64857 85852 86476 128778 129714 211201 257556 259428 281047 422402 562094 633603 843141 844804 1124188 1267206 1686282 2534412 2745613 3372564 5491226 8236839 10982452 16473678 32947356 35692969 71385938 107078907 142771876 214157814 428315628
• Sum of all divisors σ(n): 1091371008
• Sum of proper divisors (its aliquot sum) s(n): 663055380
• 428315628 is an abundant number, because the sum of its proper divisors (663055380) is greater than itself. Its abundance is 234739752

Bases of 428315628

• Binary: 11001100001111001001111101100₂
• Hexadecimal: 0x198793EC
• Base-36: 730AGC

Squares and roots of 428315628

• 428315628 squared (428315628²) is 183454277189034384
• 428315628 cubed (428315628³) is 78576333943507336896553152
• The square root of 428315628 is 20695.7876873531
• The cube root of 428315628 is 753.7974089081

Scales and comparisons

• 428,315,628 seconds is equal to 13 years, 32 weeks, 1 day, 8 hours, 33 minutes, 48 seconds.
• To count from 1 to 428,315,628 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 428315628 cubic inches would be around 62.8 feet tall.

Recreational maths with 428315628

• 428315628 backwards is 826513824
• 428315628 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 428315628's digits is 39
• More coming soon!