Properties of the Number 17481

Seventeen Thousand Four Hundred Eighty-One

Basics

Value: 17480 → 17481 → 17482

Parity: odd

Prime: No

Previous Prime: 17477

Next Prime: 17483

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5827

Divisors: 1, 3, 5827, 17481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100010001001001

Octal: 42111

Duodecimal: A149

Hexadecimal: 4449

Square: 305585361

Square Root: 132.2157328006013

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

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal. A236809

Semiprimes in A056109. A113528

Indices of record high values in A061836. A333533

Number of (n+1) X (1+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2 X 2 subblock equal. A236802

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 70 ones. A31838

Numbers whose base-4 representation has exactly 8 runs. A43599

Numbers k such that number of runs in the base 4 representation of k is congruent to 0 mod 8. A43850

Numbers n such that number of runs in the base 4 representation of n is congruent to 8 mod 9. A43866

Triangle T(n, k) = coefficients of p(x,n), where p(x,n) = ((1-x)^2·n+1/xⁿ) * ∑_{j >= n} ( (2·j+1)ⁿ * binomial(j, n) * x^j ), read by rows. A156654

Expansion of (1-x+x²)/((1-x)(1-x-x²-x³)). A202012