1997321430

Names of 1997321430

• Cardinal: 1997321430 can be written as One billion, nine hundred ninety-seven million, three hundred twenty-one thousand, four hundred thirty.

Scientific notation

• Scientific notation: 1.99732143 × 10⁹

Factors of 1997321430

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7509

Divisors of 1997321430

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 39 53 65 78 106 130 159 169 195 265 318 338 390 507 530 689 795 845 1014 1378 1590 1690 2067 2535 3445 4134 5070 6890 7433 8957 10335 14866 17914 20670 22299 26871 37165 44598 44785 53742 74330 89570 96629 111495 134355 193258 222990 268710 289887 393949 483145 579774 787898 966290 1181847 1256177 1449435 1969745 2363694 2512354 2898870 3768531 3939490 5121337 5909235 6280885 7537062 10242674 11818470 12561770 15364011 18842655 25606685 30728022 37685310 51213370 66577381 76820055 133154762 153640110 199732143 332886905 399464286 665773810 998660715 1997321430
• Sum of all divisors σ(n): 5289320736
• Sum of proper divisors (its aliquot sum) s(n): 3291999306
• 1997321430 is an abundant number, because the sum of its proper divisors (3291999306) is greater than itself. Its abundance is 1294677876

Bases of 1997321430

• Binary: 1110111000011001011010011010110₂
• Hexadecimal: 0x770CB4D6
• Base-36: X15J2U

Squares and roots of 1997321430

• 1997321430 squared (1997321430²) is 3989292894737244900
• 1997321430 cubed (1997321430³) is 7967900189205433457928207000
• The square root of 1997321430 is 44691.4021932629
• The cube root of 1997321430 is 1259.3583341533

Scales and comparisons

• 1,997,321,430 seconds is equal to 63 years, 26 weeks, 3 days, 3 hours, 30 minutes, 30 seconds.
• To count from 1 to 1,997,321,430 would take you about one hundred twenty-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 1997321430 cubic inches would be around 104.9 feet tall.

Recreational maths with 1997321430

• 1997321430 backwards is 0341237991
• 1997321430 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1997321430's digits is 39
• More coming soon!