21338730424

Names of 21338730424

• Cardinal: 21338730424 can be written as Twenty-one billion, three hundred thirty-eight million, seven hundred thirty thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1338730424 × 10¹⁰

Factors of 21338730424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 125

Divisors of 21338730424

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 11 22 23 44 46 88 89 92 121 178 184 242 253 356 484 506 712 968 979 1012 1331 1958 2024 2047 2662 2783 3916 4094 5324 5566 7832 7921 8188 10648 10769 11132 14641 15842 16376 21538 22264 22517 29282 30613 31684 43076 45034 58564 61226 63368 86152 87131 90068 117128 118459 122452 174262 180136 182183 236918 244904 247687 336743 348524 364366 473836 495374 673486 697048 728732 947672 958441 990748 1303049 1346972 1457464 1916882 1981496 2004013 2606098 2693944 2724557 3833764 4008026 5212196 5449114 7667528 8016052 10424392 10542851 10898228 16032104 21085702 21796456 22044143 29970127 42171404 44088286 59940254 84342808 88176572 115971361 119880508 176353144 231942722 239761016 242485573 463885444 484971146 927770888 969942292 1939884584 2667341303 5334682606 10669365212 21338730424
• Sum of all divisors σ(n): 46446175800
• Sum of proper divisors (its aliquot sum) s(n): 25107445376
• 21338730424 is an abundant number, because the sum of its proper divisors (25107445376) is greater than itself. Its abundance is 3768714952

Bases of 21338730424

• Binary: 10011110111111000110010111110111000₂
• Hexadecimal: 0x4F7E32FB8
• Base-36: 9SWJ1RS

Squares and roots of 21338730424

• 21338730424 squared (21338730424²) is 455341416108143219776
• 21338730424 cubed (21338730424³) is 9716407729214079397983449665024
• The square root of 21338730424 is 146077.8231765521
• The cube root of 21338730424 is 2773.6789610359

Scales and comparisons

• 21,338,730,424 seconds is equal to 678 years, 26 weeks, 2 days, 1 hour, 7 minutes, 4 seconds.
• To count from 1 to 21,338,730,424 would take you about one thousand, three hundred fifty-seven 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 21338730424 cubic inches would be around 231.1 feet tall.

Recreational maths with 21338730424

• 21338730424 backwards is 42403783312
• The number of decimal digits it has is: 11
• The sum of 21338730424's digits is 37
• More coming soon!