21383797824

Names of 21383797824

• Cardinal: 21383797824 can be written as Twenty-one billion, three hundred eighty-three million, seven hundred ninety-seven thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 2.1383797824 × 10¹⁰

Factors of 21383797824

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 682

Divisors of 21383797824

• Number of divisors d(n): 147
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 486 576 648 677 729 864 972 1296 1354 1458 1728 1944 2031 2592 2708 2916 3888 4062 5184 5416 5832 6093 7776 8124 10832 11664 12186 15552 16248 18279 21664 23328 24372 32496 36558 43328 46656 48744 54837 64992 73116 97488 109674 129984 146232 164511 194976 219348 292464 329022 389952 438696 458329 493533 584928 658044 877392 916658 987066 1169856 1316088 1374987 1754784 1833316 1974132 2632176 2749974 3509568 3666632 3948264 4124961 5264352 5499948 7333264 7896528 8249922 10528704 10999896 12374883 14666528 15793056 16499844 21999792 24749766 29333056 31586112 32999688 37124649 43999584 49499532 65999376 74249298 87999168 98999064 111373947 131998752 148498596 197998128 222747894 263997504 296997192 334121841 395996256 445495788 593994384 668243682 791992512 890991576 1187988768 1336487364 1781983152 2375977536 2672974728 3563966304 5345949456 7127932608 10691898912 21383797824
• Sum of all divisors σ(n): 63715220677
• Sum of proper divisors (its aliquot sum) s(n): 42331422853
• 21383797824 is an abundant number, because the sum of its proper divisors (42331422853) is greater than itself. Its abundance is 20947625029

Bases of 21383797824

• Binary: 10011111010100100101101110001000000₂
• Hexadecimal: 0x4FA92DC40
• Base-36: 9TND000

Squares and roots of 21383797824

• 21383797824 squared (21383797824²) is 457266809377707134976
• 21383797824 cubed (21383797824³) is 9778101003358436627009063092224
• 21383797824 is a perfect square number. Its square root is 146232
• The cube root of 21383797824 is 2775.6302580137

Scales and comparisons

• 21,383,797,824 seconds is equal to 679 years, 48 weeks, 5 days, 15 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,383,797,824 would take you about one thousand, three hundred fifty-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 21383797824 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383797824

• 21383797824 backwards is 42879738312
• 21383797824 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21383797824's digits is 54
• More coming soon!