990657129

Names of 990657129

• Cardinal: 990657129 can be written as Nine hundred ninety million, six hundred fifty-seven thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 9.90657129 × 10⁸

Factors of 990657129

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 356

Divisors of 990657129

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 11 21 33 37 41 77 111 121 123 231 257 259 287 363 407 451 771 777 847 861 1221 1353 1517 1799 2541 2827 2849 3157 4477 4551 4961 5397 8481 8547 9471 9509 10537 10619 13431 14883 16687 19789 28527 31097 31339 31611 31857 34727 50061 59367 66563 73759 93291 94017 104181 104599 115907 116809 183557 199689 217679 221277 313797 347721 350427 389869 550671 653037 732193 811349 1150589 1169607 1274977 1284899 2196579 2434047 2729083 3451767 3824931 3854697 4288559 8054123 8187249 8924839 12865677 24162369 26774517 30019913 47174149 90059739 141522447 330219043 990657129
• Sum of all divisors σ(n): 1752484608
• Sum of proper divisors (its aliquot sum) s(n): 761827479
• 990657129 is a deficient number, because the sum of its proper divisors (761827479) is less than itself. Its deficiency is 228829650

Bases of 990657129

• Binary: 111011000011000011101001101001₂
• Hexadecimal: 0x3B0C3A69
• Base-36: GDT7XL

Squares and roots of 990657129

• 990657129 squared (990657129²) is 981401547238522641
• 990657129 cubed (990657129³) is 972232439183472717734557689
• The square root of 990657129 is 31474.7061781361
• The cube root of 990657129 is 996.8759602051

Scales and comparisons

• 990,657,129 seconds is equal to 31 years, 25 weeks, 6 days, 22 hours, 32 minutes, 9 seconds.
• To count from 1 to 990,657,129 would take you about forty-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 990657129 cubic inches would be around 83.1 feet tall.

Recreational maths with 990657129

• 990657129 backwards is 921756099
• The number of decimal digits it has is: 9
• The sum of 990657129's digits is 48
• More coming soon!