21164941488

Names of 21164941488

• Cardinal: 21164941488 can be written as Twenty-one billion, one hundred sixty-four million, nine hundred forty-one thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1164941488 × 10¹⁰

Factors of 21164941488

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 220

Divisors of 21164941488

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 31 47 48 62 93 94 124 137 141 186 188 248 274 282 372 376 411 496 548 564 744 752 822 1096 1128 1457 1488 1644 2192 2209 2256 2914 3288 4247 4371 4418 5828 6439 6576 6627 8494 8742 8836 11656 12741 12878 13254 16988 17484 17672 19317 23312 25482 25756 26508 33976 34968 35344 38634 50964 51512 53016 67952 68479 69936 77268 101928 103024 103823 106032 136958 154536 199609 203856 205437 207646 273916 302633 309072 311469 399218 410874 415292 547832 598827 605266 622938 798436 821748 830584 907899 1095664 1197654 1210532 1245876 1596872 1643496 1661168 1815798 2395308 2421064 2491752 3193744 3218513 3286992 3631596 4790616 4842128 4983504 6437026 7263192 9381623 9581232 9655539 12874052 14223751 14526384 18763246 19311078 25748104 28144869 28447502 37526492 38622156 42671253 51496208 56289738 56895004 75052984 77244312 85342506 112579476 113790008 150105968 154488624 170685012 225158952 227580016 341370024 440936281 450317904 682740048 881872562 1322808843 1763745124 2645617686 3527490248 5291235372 7054980496 10582470744 21164941488
• Sum of all divisors σ(n): 58087710720
• Sum of proper divisors (its aliquot sum) s(n): 36922769232
• 21164941488 is an abundant number, because the sum of its proper divisors (36922769232) is greater than itself. Its abundance is 15757827744

Bases of 21164941488

• Binary: 10011101101100001110110000010110000₂
• Hexadecimal: 0x4ED8760B0
• Base-36: 9Q125DC

Squares and roots of 21164941488

• 21164941488 squared (21164941488²) is 447954748190463654144
• 21164941488 cubed (21164941488³) is 9480936034722937119548428726272
• The square root of 21164941488 is 145481.7565469981
• The cube root of 21164941488 is 2766.1285387089

Scales and comparisons

• 21,164,941,488 seconds is equal to 672 years, 50 weeks, 6 days, 14 hours, 24 minutes, 48 seconds.
• To count from 1 to 21,164,941,488 would take you about one thousand, three hundred forty-five 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 21164941488 cubic inches would be around 230.5 feet tall.

Recreational maths with 21164941488

• 21164941488 backwards is 88414946112
• 21164941488 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21164941488's digits is 48
• More coming soon!