1990120125825

Names of 1990120125825

• Cardinal: 1990120125825 can be written as One trillion, nine hundred ninety billion, one hundred twenty million, one hundred twenty-five thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 1.990120125825 × 10¹²

Factors of 1990120125825

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9740

Divisors of 1990120125825

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 9 13 15 25 29 39 45 65 75 87 117 145 195 225 261 325 377 435 585 725 975 1131 1305 1885 2175 2925 3393 4733 4957 5655 6525 9425 14199 14871 16965 23665 24785 28275 42597 44613 61529 64441 70995 74355 84825 118325 123925 137257 143753 184587 193323 212985 223065 307645 322205 354975 371775 411771 431259 553761 579969 686285 718765 922935 966615 1064925 1115325 1235313 1293777 1538225 1611025 1784341 1868789 2058855 2156295 2768805 2899845 3431425 3593825 4614675 4833075 5353023 5606367 6176565 6468885 8921705 9343945 10294275 10781475 13844025 14499225 16059069 16819101 23461481 26765115 28031835 30882825 32344425 44608525 46719725 70384443 80295345 84095505 117307405 133825575 140159175 211153329 304999253 351922215 401476725 420477525 586537025 680382949 914997759 1055766645 1524996265 1759611075 2041148847 2744993277 3401914745 4574988795 5278833225 6123446541 7624981325 8844978337 10205744235 13724966385 17009573725 22874943975 26534935011 30617232705 44224891685 51028721175 68624831925 79604805033 132674675055 153086163525 221124458425 398024025165 663373375275 1990120125825
• Sum of all divisors σ(n): 3972730572720
• Sum of proper divisors (its aliquot sum) s(n): 1982610446895
• 1990120125825 is a deficient number, because the sum of its proper divisors (1982610446895) is less than itself. Its deficiency is 7509678930

Bases of 1990120125825

• Binary: 11100111101011100011001110011010110000001₂
• Hexadecimal: 0x1CF5C673581
• Base-36: PE8Y50U9

Squares and roots of 1990120125825

• 1990120125825 squared (1990120125825²) is 3960578115213713831930625
• 1990120125825 cubed (1990120125825³) is 7882026216988857517967318327670890625
• The square root of 1990120125825 is 1410716.1747938527
• The cube root of 1990120125825 is 12578.4298071161

Scales and comparisons

• 1,990,120,125,825 seconds is equal to 63,279 years, 34 weeks, 3 days, 18 hours, 3 minutes, 45 seconds.
• To count from 1 to 1,990,120,125,825 would take you about one hundred fifty-eight thousand, one hundred ninety-nine 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 1990120125825 cubic inches would be around 1048.2 feet tall.

Recreational maths with 1990120125825

• 1990120125825 backwards is 5285210210991
• 1990120125825 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1990120125825's digits is 45
• More coming soon!