399669169428

Names of 399669169428

• Cardinal: 399669169428 can be written as Three hundred ninety-nine billion, six hundred sixty-nine million, one hundred sixty-nine thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 3.99669169428 × 10¹¹

Factors of 399669169428

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4478496

Divisors of 399669169428

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 37 67 74 111 134 148 201 222 268 333 402 444 603 666 804 1206 1332 2412 2479 4958 7437 9916 14874 22311 29748 44622 89244 4478387 8956774 13435161 17913548 26870322 40305483 53740644 80610966 161221932 165700319 300051929 331400638 497100957 600103858 662801276 900155787 994201914 1200207716 1491302871 1800311574 1988403828 2700467361 2982605742 3600623148 5400934722 5965211484 10801869444 11101921373 22203842746 33305764119 44407685492 66611528238 99917292357 133223056476 199834584714 399669169428
• Sum of all divisors σ(n): 1053066067872
• Sum of proper divisors (its aliquot sum) s(n): 653396898444
• 399669169428 is an abundant number, because the sum of its proper divisors (653396898444) is greater than itself. Its abundance is 253727729016

Bases of 399669169428

• Binary: 101110100001110001000111000110100010100₂
• Hexadecimal: 0x5D0E238D14
• Base-36: 53LSPCT0

Squares and roots of 399669169428

• 399669169428 squared (399669169428²) is 159735444991267369847184
• 399669169428 cubed (399669169428³) is 63841332627871812419902120564690752
• The square root of 399669169428 is 632193.9334001869
• The cube root of 399669169428 is 7366.0311199253

Scales and comparisons

• 399,669,169,428 seconds is equal to 12,708 years, 12 weeks, 4 days, 13 hours, 43 minutes, 48 seconds.
• To count from 1 to 399,669,169,428 would take you about twenty-five thousand, four hundred sixteen 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 399669169428 cubic inches would be around 613.8 feet tall.

Recreational maths with 399669169428

• 399669169428 backwards is 824961966993
• The number of decimal digits it has is: 12
• The sum of 399669169428's digits is 72
• More coming soon!