21428141449168

Names of 21428141449168

• Cardinal: 21428141449168 can be written as Twenty-one trillion, four hundred twenty-eight billion, one hundred forty-one million, four hundred forty-nine thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1428141449168 × 10¹³

Factors of 21428141449168

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 479

Divisors of 21428141449168

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 16 31 62 67 124 134 248 268 379 496 536 758 1072 1516 2077 3032 4154 4489 6064 8308 8978 11749 16616 17956 23498 25393 33232 35912 46996 50786 71824 93992 101572 139159 143641 187984 203144 278318 287282 300763 406288 556636 574564 601526 787183 1113272 1149128 1203052 1574366 1701331 2226544 2298256 2406104 3148732 3402662 4452871 4812208 6297464 6805324 8905742 9323653 9623947 12594928 13610648 17811484 18647306 19247894 27221296 35622968 37294612 38495788 52741261 71245936 74589224 76991576 105482522 113989177 149178448 153983152 210965044 227978354 298342357 421930088 455956708 596684714 644804449 843860176 911913416 1193369428 1289608898 1823826832 2386738856 2579217796 3533664487 4773477712 5158435592 7067328974 10316871184 14134657948 19988937919 28269315896 39977875838 43201898083 56538631792 79955751676 86403796166 159911503352 172807592332 319823006704 345615184664 691230369328 1339258840573 2678517681146 5357035362292 10714070724584 21428141449168
• Sum of all divisors σ(n): 43620711786240
• Sum of proper divisors (its aliquot sum) s(n): 22192570337072
• 21428141449168 is an abundant number, because the sum of its proper divisors (22192570337072) is greater than itself. Its abundance is 764428887904

Bases of 21428141449168

• Binary: 100110111110100100000110000100101111111010000₂
• Hexadecimal: 0x137D20C25FD0
• Base-36: 7LFYA5S5S

Squares and roots of 21428141449168

• 21428141449168 squared (21428141449168²) is 459165245965551675127892224
• 21428141449168 cubed (21428141449168³) is 9839057839091857637281582422520678469632
• The square root of 21428141449168 is 4629054.0555461219
• The cube root of 21428141449168 is 27775.4754337359

Scales and comparisons

• 21,428,141,449,168 seconds is equal to 681,348 years, 32 weeks, 9 hours, 39 minutes, 28 seconds.
• To count from 1 to 21,428,141,449,168 would take you about one million, seven hundred three thousand, three hundred seventy-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 21428141449168 cubic inches would be around 2314.6 feet tall.

Recreational maths with 21428141449168

• 21428141449168 backwards is 86194414182412
• The number of decimal digits it has is: 14
• The sum of 21428141449168's digits is 55
• More coming soon!