119 2,373,046,875 = 755 2,494,357,888 = 227 2,535,525,376 = 765 2,562,890,625 = 506252 = 2254 = 158 2,565,726,409 = 506532 = 13693 = 376 2,695,730,992 = number of (unordered, unlabeled) rooted trimmed trees with 29 nodes 2,706,784,157 = 775 2,873,403,980 = number of uniform rooted trees with 27 nodes 2,834,510,744 = number of nonequivalent dissections of an 22-gon into 19 polygons by nonintersecting diagonals up to rotation 2,887,174,368 = 785 2,971,215,073 = 11th Fibonacci prime (47th Fibonacci number) and a Markov prime. 3,000,000,000 to 3,999,999,999 3,010,936,384 = 548722 = 14443 = 386 3,077,056,399 = 795 3,166,815,962 = 26th Pell number. 3,192,727,797 = 24th Motzkin number. 3,276,800,000 = 805 3,323,236,238 = 31st Wedderburn–Etherington number. 3,333,333,333 = repdigit 3,404,825,447 = 237 3,405,691,582 = hexadecimal CAFEBABE; used as a placeholder in programming. 3,405,697,037 = hexadecimal CAFED00D; used as a placeholder in programming. 3,461,824,644 = number of secondary structures of RNA molecules with 28 nucleotides 3,486,784,401 = 590492 = 2434 = 815 = 910 = 320 3,486,792,401 = Leyland number 3,518,743,761 = 593192 = 15213 = 396 3,520,581,954 = number of series-reduced planted trees with 37 nodes 3,665,821,697 = 437 × 223 + 1; smallest Proth prime for k = 437 3,707,398,432 = 825 3,735,928,559 = hexadecimal DEADBEEF; used as a placeholder in programming. 3,735,929,054 = hexadecimal DEADC0DE; used as a placeholder in programming. 3,939,040,643 = 835 4,000,000,000 to 4,999,999,999 4,006,387,712 = number of independent vertex sets and vertex covers in the 22-sunlet graph 4,021,227,877 = least k >= 1 such that the remainder when 6k is divided by k is 5 4,096,000,000 = 640002 = 16003 = 406 4,118,054,813 = number of primes under 1011 4,182,119,424 = 845 4,294,967,291 = Largest prime 32-bit unsigned integer. 4,294,967,295 = Maximum 32-bit unsigned integer (FFFFFFFF16), perfect totient number, product of all known Fermat primes through . 4,294,967,296 = 655362 = 2564 = 168 = 416 = 232 4,294,967,297 = , the first composite Fermat number. 4,294,968,320 = Leyland number 4,295,032,832 = Leyland number 4,437,053,125 = 855 4,444,444,444 = repdigit 4,467,033,943 – number of parallelogram polyominoes with 28 cells. 4,486,784,401 = Leyland number 4,500,000,000 = Approximate age of the Earth in years 4,586,471,424 = 247 4,704,270,176 = 865 4,750,104,241 = 689212 = 16813 = 416 4,807,526,976 = 48th Fibonacci number. 4,984,209,207 = 875 5,000,000,000 to 5,999,999,999 5,159,780,352 = 17283 = 129 = 1,000,000,00012 AKA a great-great-great-gross (1,000,00012 great-grosses or 1,00012 great-great-grosses) 5,277,319,168 = 885 5,354,228,880 = superior