21838340992

Names of 21838340992

• Cardinal: 21838340992 can be written as Twenty-one billion, eight hundred thirty-eight million, three hundred forty thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.1838340992 × 10¹⁰

Factors of 21838340992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7252

Divisors of 21838340992

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 13 16 19 26 32 38 52 64 76 97 104 128 152 194 208 247 304 388 416 494 608 776 832 988 1216 1261 1552 1664 1843 1976 2432 2522 3104 3686 3952 5044 6208 7121 7372 7904 10088 12416 14242 14744 15808 20176 23959 28484 29488 31616 40352 47918 56968 58976 80704 92573 95836 113936 117952 135299 161408 185146 191672 227872 235904 270598 370292 383344 455744 541196 690737 740584 766688 911488 1082392 1381474 1481168 1533376 1758887 2164784 2762948 2962336 3066752 3517774 4329568 5525896 5924672 7035548 8659136 8979581 11051792 11849344 13124003 14071096 17318272 17959162 22103584 26248006 28142192 35918324 44207168 52496012 56284384 71836648 88414336 104992024 112568768 143673296 170612039 209984048 225137536 287346592 341224078 419968096 574693184 682448156 839936192 1149386368 1364896312 1679872384 2729792624 5459585248 10919170496 21838340992
• Sum of all divisors σ(n): 49834058400
• Sum of proper divisors (its aliquot sum) s(n): 27995717408
• 21838340992 is an abundant number, because the sum of its proper divisors (27995717408) is greater than itself. Its abundance is 6157376416

Bases of 21838340992

• Binary: 10100010101101010101010001110000000₂
• Hexadecimal: 0x515AAA380
• Base-36: A15ZFR4

Squares and roots of 21838340992

• 21838340992 squared (21838340992²) is 476913137282867544064
• 21838340992 cubed (21838340992³) is 10414991715547769786839217471488
• The square root of 21838340992 is 147778.0125458453
• The cube root of 21838340992 is 2795.1591949375

Scales and comparisons

• 21,838,340,992 seconds is equal to 694 years, 20 weeks, 2 days, 13 hours, 49 minutes, 52 seconds.
• To count from 1 to 21,838,340,992 would take you about one thousand, three hundred eighty-eight 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 21838340992 cubic inches would be around 232.9 feet tall.

Recreational maths with 21838340992

• 21838340992 backwards is 29904383812
• The number of decimal digits it has is: 11
• The sum of 21838340992's digits is 49
• More coming soon!