21490042890069

Names of 21490042890069

• Cardinal: 21490042890069 can be written as Twenty-one trillion, four hundred ninety billion, forty-two million, eight hundred ninety thousand and sixty-nine.

Scientific notation

• Scientific notation: 2.1490042890069 × 10¹³

Factors of 21490042890069

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 284689

Divisors of 21490042890069

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 9 13 19 27 39 57 67 117 169 171 201 247 351 507 513 603 741 871 1273 1521 1809 2197 2223 2613 3211 3819 4563 6591 6669 7839 9633 11323 11457 16549 19773 23517 28899 33969 34371 41743 49647 59319 86697 101907 125229 147199 148941 215137 284587 305721 375687 441597 446823 645411 853761 1127061 1324791 1936233 2561283 2796781 3699631 3974373 5407153 5808699 7683849 8390343 11098893 16221459 19067329 25171029 33296679 48095203 48664377 57201987 70292989 75513087 99890037 144285609 145993131 171605961 210878967 247875277 362279251 432856827 514817883 625237639 632636901 743625831 913808857 1086837753 1298570481 1875712917 1897910703 2230877493 2741426571 3222378601 3260513259 4709630263 5627138751 6692632479 8224279713 9667135803 9781539777 11879515141 14128890789 16881416253 24672839139 29001407409 35638545423 41890921813 42386672367 61225193419 87004222227 106915636269 125672765439 127160017101 183675580257 320746908807 377018296317 551026740771 795927514447 1131054888951 1653080222313 2387782543341 7163347630023 21490042890069
• Sum of all divisors σ(n): 36846177536000
• Sum of proper divisors (its aliquot sum) s(n): 15356134645931
• 21490042890069 is a deficient number, because the sum of its proper divisors (15356134645931) is less than itself. Its deficiency is 6133908244138

Bases of 21490042890069

• Binary: 100111000101110001010010111110110011101010101₂
• Hexadecimal: 0x138B8A5F6755
• Base-36: 7M8E0OHN9

Squares and roots of 21490042890069

• 21490042890069 squared (21490042890069²) is 461821943417005178018824761
• 21490042890069 cubed (21490042890069³) is 9924573371606460145072402698567298198509
• The square root of 21490042890069 is 4635735.4206284249
• The cube root of 21490042890069 is 27802.1955764989

Scales and comparisons

• 21,490,042,890,069 seconds is equal to 683,316 years, 46 weeks, 2 days, 6 hours, 21 minutes, 9 seconds.
• To count from 1 to 21,490,042,890,069 would take you about one million, seven hundred eight thousand, two hundred ninety-two 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 21490042890069 cubic inches would be around 2316.8 feet tall.

Recreational maths with 21490042890069

• 21490042890069 backwards is 96009824009412
• The number of decimal digits it has is: 14
• The sum of 21490042890069's digits is 54
• More coming soon!