Properties of the Number 40306

Forty Thousand Three Hundred Six

Basics

Value: 40305 → 40306 → 40307

Parity: even

Prime: No

Previous Prime: 40289

Next Prime: 40343

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 2879

Divisors: 1, 2, 7, 14, 2879, 5758, 20153, 40306

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001110101110010

Octal: 116562

Duodecimal: 1B3AA

Hexadecimal: 9d72

Square: 1624573636

Square Root: 200.76354250709963

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k such that 30 plus the k-th triangular number is a perfect square. A154154

The sixth term of the greedy B_n set of natural numbers. A369818

Number of permutations of [n] having no substring [k,k+1,k+2,k+3,k+4,k+5]. A370384

Triangle read by rows: T(n,m)=2·Binomial[n, m] - (m! - n! + (-m + n)!). A155451

a(n) = 2·a(n-1) + a(n-2) + n² for n > 1, with a(0) = 0, a(1) = 1. A271389

Continued fraction for sqrt(325). A40306