21247327904

Names of 21247327904

• Cardinal: 21247327904 can be written as Twenty-one billion, two hundred forty-seven million, three hundred twenty-seven thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.1247327904 × 10¹⁰

Factors of 21247327904

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 920

Divisors of 21247327904

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 11 16 19 22 32 38 44 76 88 152 176 209 271 304 352 361 418 542 608 617 722 836 1084 1234 1444 1672 2168 2468 2888 2981 3344 3971 4336 4936 5149 5776 5962 6688 6787 7942 8672 9872 10298 11552 11723 11924 13574 15884 19744 20596 23446 23848 27148 31768 41192 46892 47696 54296 56639 63536 82384 93784 95392 97831 108592 113278 127072 128953 164768 167207 187568 195662 217184 222737 226556 257906 334414 375136 391324 445474 453112 515812 668828 782648 890948 906224 1031624 1076141 1337656 1565296 1781896 1812448 1839277 2063248 2152282 2450107 2675312 3130592 3176933 3563792 3678554 4126496 4304564 4900214 5350624 6353866 7127584 7357108 8609128 9800428 12707732 14714216 17218256 19600856 25415464 29428432 34436512 34946263 39201712 50830928 58856864 60361727 69892526 78403424 101661856 120723454 139785052 241446908 279570104 482893816 559140208 663978997 965787632 1118280416 1327957994 1931575264 2655915988 5311831976 10623663952 21247327904
• Sum of all divisors σ(n): 48417699456
• Sum of proper divisors (its aliquot sum) s(n): 27170371552
• 21247327904 is an abundant number, because the sum of its proper divisors (27170371552) is greater than itself. Its abundance is 5923043648

Bases of 21247327904

• Binary: 10011110010011100000111111010100000₂
• Hexadecimal: 0x4F2707EA0
• Base-36: 9RE3Z4W

Squares and roots of 21247327904

• 21247327904 squared (21247327904²) is 451448943060097033216
• 21247327904 cubed (21247327904³) is 9592083725112106842797931659264
• The square root of 21247327904 is 145764.6318693255
• The cube root of 21247327904 is 2769.7130254819

Scales and comparisons

• 21,247,327,904 seconds is equal to 675 years, 31 weeks, 1 day, 3 hours, 31 minutes, 44 seconds.
• To count from 1 to 21,247,327,904 would take you about one thousand, three hundred fifty-one 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 21247327904 cubic inches would be around 230.8 feet tall.

Recreational maths with 21247327904

• 21247327904 backwards is 40972374212
• The number of decimal digits it has is: 11
• The sum of 21247327904's digits is 41
• More coming soon!