55945

Appears in sequences

• Triangular numbers with sum of digits = 28.at n=13A068132
• Triangular numbers which are one more than a product of distinct triangular numbers.at n=25A083517
• Triangle read by rows in which the n-th row contains the n smallest triangular numbers with the least significant digits of the n-th triangular number.at n=42A095225
• Triangular numbers composed of digits {4,5,9}.at n=5A119208
• Numbers k such that k^2 + 1 is divisible by precisely five distinct primes where the sum of the largest and the smallest is equal to the sum of the other three.at n=8A192771
• Numbers k such that the sum of the largest and the smallest prime divisor of k^2 + 1 equals the sum of the other distinct prime divisors.at n=14A199924
• Triangular numbers which are an average of four consecutive primes.at n=28A226196
• Triangular numbers representable as b! + c^2.at n=35A230364
• n^3 + 4*n^2 - 5*n + 1.at n=37A241577
• Numbers k such that k divides the sum of the digits of k^(3k).at n=24A383746