1421997408

Names of 1421997408

• Cardinal: 1421997408 can be written as One billion, four hundred twenty-one million, nine hundred ninety-seven thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.421997408 × 10⁹

Factors of 1421997408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8146

Divisors of 1421997408

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 47 48 52 72 78 94 96 104 117 141 144 156 188 208 234 282 288 312 376 416 423 468 564 611 624 752 846 936 1128 1222 1248 1504 1692 1833 1872 2256 2444 3384 3666 3744 4512 4888 5499 6768 7332 8081 9776 10998 13536 14664 16162 19552 21996 24243 29328 32324 43992 48486 58656 64648 72729 87984 96972 105053 129296 145458 175968 193944 210106 258592 290916 315159 379807 387888 420212 581832 630318 759614 775776 840424 945477 1139421 1163664 1260636 1519228 1680848 1890954 2278842 2327328 2521272 3038456 3361696 3418263 3781908 4557684 4937491 5042544 6076912 6836526 7563816 9115368 9874982 10085088 12153824 13673052 14812473 15127632 18230736 19749964 27346104 29624946 30255264 36461472 39499928 44437419 54692208 59249892 78999856 88874838 109384416 118499784 157999712 177749676 236999568 355499352 473999136 710998704 1421997408
• Sum of all divisors σ(n): 4448074176
• Sum of proper divisors (its aliquot sum) s(n): 3026076768
• 1421997408 is an abundant number, because the sum of its proper divisors (3026076768) is greater than itself. Its abundance is 1604079360

Bases of 1421997408

• Binary: 1010100110000011111010101100000₂
• Hexadecimal: 0x54C1F560
• Base-36: NIMC80

Squares and roots of 1421997408

• 1421997408 squared (1421997408²) is 2022076628358718464
• 1421997408 cubed (1421997408³) is 2875387724303476950009741312
• The square root of 1421997408 is 37709.3809018393
• The cube root of 1421997408 is 1124.5176290533

Scales and comparisons

• 1,421,997,408 seconds is equal to 45 years, 11 weeks, 1 day, 7 hours, 16 minutes, 48 seconds.
• To count from 1 to 1,421,997,408 would take you about ninety 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 1421997408 cubic inches would be around 93.7 feet tall.

Recreational maths with 1421997408

• 1421997408 backwards is 8047991241
• The number of decimal digits it has is: 10
• The sum of 1421997408's digits is 45
• More coming soon!