1990428641368461

Names of 1990428641368461

• Cardinal: 1990428641368461 can be written as One quadrillion, nine hundred ninety trillion, four hundred twenty-eight billion, six hundred forty-one million, three hundred sixty-eight thousand, four hundred sixty-one.

Scientific notation

• Scientific notation: 1.990428641368461 × 10¹⁵

Factors of 1990428641368461

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5308

Divisors of 1990428641368461

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 21 27 49 63 89 147 189 267 343 441 623 801 1029 1323 1869 2403 3087 4361 5209 5607 7921 9261 13083 15627 16821 23763 30527 36463 39249 46881 55447 71289 91581 109389 117747 140643 166341 213867 255241 274743 328167 388129 463601 499023 765723 824229 984501 1164387 1390803 1497069 1786687 2297169 2716903 3245207 3493161 4172409 5360061 6891507 8150709 9735621 10479483 12517227 16080183 22716449 24452127 27133681 29206863 41260489 48240549 68149347 73356381 81401043 87620589 123781467 159015143 189935767 204448041 244203129 288823423 371344401 477045429 569807301 613344123 732609387 866470269 1114033203 1329550369 1431136287 1709421903 2021763961 2414897609 2599410807 3988651107 4293408861 5128265709 6065291883 7244692827 7798232421 9306852583 11965953321 14152347727 16904283263 18195875649 21734078481 27920557749 35897859963 42457043181 50712849789 54587626947 65202235443 83761673247 118329982841 127371129543 152138549367 214925887201 251285019741 354989948523 382113388629 456415648101 644777661603 828309879887 1064969845569 1504481210407 1934332984809 2484929639661 3194909536707 4513443631221 5802998954427 7454788918983 10531368472849 13540330893663 22364366756949 31594105418547 40620992680989 73719579309943 94782316255641 221158737929829 284346948766923 663476213789487 1990428641368461
• Sum of all divisors σ(n): 3478554492816000
• Sum of proper divisors (its aliquot sum) s(n): 1488125851447539
• 1990428641368461 is a deficient number, because the sum of its proper divisors (1488125851447539) is less than itself. Its deficiency is 502302789920922

Bases of 1990428641368461

• Binary: 111000100100100100011001000000111101001100110001101₂
• Hexadecimal: 0x71248C81E998D
• Base-36: JLJQALQ559

Squares and roots of 1990428641368461

• 1990428641368461 squared (1990428641368461²) is 3961806176379897536118765508521
• 1990428641368461 cubed (1990428641368461³) is 7885692485017016818091236271778984407996156181
• The square root of 1990428641368461 is 44614220.1699016701
• The cube root of 1990428641368461 is 125790.7975793141

Scales and comparisons

• 1,990,428,641,368,461 seconds is equal to 63,289,473 years, 51 weeks, 5 days, 8 hours, 34 minutes, 21 seconds.
• To count from 1 to 1,990,428,641,368,461 would take you about one hundred eighty-nine million, eight hundred sixty-eight thousand, four hundred twenty-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 1990428641368461 cubic inches would be around 10482.6 feet tall.

Recreational maths with 1990428641368461

• 1990428641368461 backwards is 1648631468240991
• The number of decimal digits it has is: 16
• The sum of 1990428641368461's digits is 72
• More coming soon!