1642242789

Names of 1642242789

• Cardinal: 1642242789 can be written as One billion, six hundred forty-two million, two hundred forty-two thousand, seven hundred eighty-nine.

Scientific notation

• Scientific notation: 1.642242789 × 10⁹

Factors of 1642242789

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 103

Divisors of 1642242789

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 11 17 19 27 33 51 53 57 99 153 159 171 187 209 289 297 323 361 459 477 513 561 583 627 867 901 969 1007 1083 1431 1683 1749 1881 2601 2703 2907 3021 3179 3249 3553 3971 5049 5247 5491 5643 6137 7803 8109 8721 9063 9537 9747 9911 10659 11077 11913 15317 15741 16473 17119 18411 19133 24327 27189 28611 29733 31977 33231 35739 45951 49419 51357 55233 57399 60401 67507 85833 89199 95931 99693 104329 107217 137853 148257 154071 165699 168487 172197 181203 188309 202521 210463 267597 291023 299079 312987 325261 413559 462213 505461 516591 543609 564927 607563 631389 873069 938961 975783 1147619 1516383 1630827 1694781 1822689 1894167 2619207 2816883 2927349 3201253 3442857 3577871 4549149 5084343 5529437 5682501 7857621 8782047 9603759 10328571 10733613 16588311 28811277 30985713 32200839 49764933 60823807 86433831 96602517 149294799 182471421 547414263 1642242789
• Sum of all divisors σ(n): 3031784640
• Sum of proper divisors (its aliquot sum) s(n): 1389541851
• 1642242789 is a deficient number, because the sum of its proper divisors (1389541851) is less than itself. Its deficiency is 252700938

Bases of 1642242789

• Binary: 1100001111000101010001011100101₂
• Hexadecimal: 0x61E2A2E5
• Base-36: R5QYN9

Squares and roots of 1642242789

• 1642242789 squared (1642242789²) is 2696961378022498521
• 1642242789 cubed (1642242789³) is 4429065375268951275875415069
• The square root of 1642242789 is 40524.5948653407
• The cube root of 1642242789 is 1179.8110367241

Scales and comparisons

• 1,642,242,789 seconds is equal to 52 years, 11 weeks, 2 days, 10 hours, 33 minutes, 9 seconds.
• To count from 1 to 1,642,242,789 would take you about one hundred four 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 1642242789 cubic inches would be around 98.3 feet tall.

Recreational maths with 1642242789

• 1642242789 backwards is 9872422461
• The number of decimal digits it has is: 10
• The sum of 1642242789's digits is 45
• More coming soon!