21557430428004

Names of 21557430428004

• Cardinal: 21557430428004 can be written as Twenty-one trillion, five hundred fifty-seven billion, four hundred thirty million, four hundred twenty-eight thousand and four.

Scientific notation

• Scientific notation: 2.1557430428004 × 10¹³

Factors of 21557430428004

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3339

Divisors of 21557430428004

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 251 502 753 1004 1506 2259 3012 3083 4518 6166 9036 9249 12332 18498 27747 36996 55494 63001 110988 126002 189003 252004 378006 567009 756012 773833 1134018 1547666 2268036 2321499 3095332 4642998 6964497 9285996 9504889 13928994 19009778 27857988 28514667 38019556 57029334 85544001 114058668 171088002 194232083 342176004 388464166 582696249 776928332 1165392498 1748088747 2330784996 2385727139 3496177494 4771454278 6992354988 7157181417 9542908556 14314362834 21471544251 28628725668 42943088502 85886177004 598817511889 1197635023778 1796452535667 2395270047556 3592905071334 5389357607001 7185810142668 10778715214002 21557430428004
• Sum of all divisors σ(n): 54728111271379
• Sum of proper divisors (its aliquot sum) s(n): 33170680843375
• 21557430428004 is an abundant number, because the sum of its proper divisors (33170680843375) is greater than itself. Its abundance is 11613250415371

Bases of 21557430428004

• Binary: 100111001101100111010111110111010000101100100₂
• Hexadecimal: 0x139B3AFBA164
• Base-36: 7N3CHHAP0

Squares and roots of 21557430428004

• 21557430428004 squared (21557430428004²) is 464722806658232722627424016
• 21557430428004 cubed (21557430428004³) is 10018229572841605982700347520666868544064
• 21557430428004 is a perfect square number. Its square root is 4642998
• The cube root of 21557430428004 is 27831.2255575119

Scales and comparisons

• 21,557,430,428,004 seconds is equal to 685,459 years, 31 weeks, 3 days, 14 hours, 53 minutes, 24 seconds.
• To count from 1 to 21,557,430,428,004 would take you about one million, seven hundred thirteen thousand, six hundred forty-nine 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 21557430428004 cubic inches would be around 2319.3 feet tall.

Recreational maths with 21557430428004

• 21557430428004 backwards is 40082403475512
• The number of decimal digits it has is: 14
• The sum of 21557430428004's digits is 45
• More coming soon!