Properties of the Number 30551

Thirty Thousand Five Hundred Fifty-One

Basics

Value: 30550 → 30551 → 30552

Parity: odd

Prime: No

Previous Prime: 30539

Next Prime: 30553

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 137 × 223

Divisors: 1, 137, 223, 30551

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011101010111

Octal: 73527

Duodecimal: 1581B

Hexadecimal: 7757

Square: 933363601

Square Root: 174.78844355391462

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

Let A(n) = #{(i,j,k): i² + j² + k² <= n}, V(n) = (4/3)*π*n^3/2, P(n) = A(n) - V(n); A000092 gives values of n where |P(n)| sets a new record; sequence gives A(A000092(n)). A413

Numbers n such that the digits of σ(n) are exactly the same (albeit in different order) as the digits of φ(n), in base 10. A175795

Least odd number k such that x' = k has n solutions, where x' is the arithmetic derivative (A003415) of x. A189560

Numerators of continued fraction convergents to sqrt(623). A42196

Number of binary strings of length n with no substrings equal to 0011 0101 or 0110. A164503

Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010101. A260473

Position of n-th 2 in A030548. A30551

An optimal 2-radius sequence over a (2p)-element alphabet for p = 5. A190013