Properties of the Number 30556

Thirty Thousand Five Hundred Fifty-Six

Basics

Value: 30555 → 30556 → 30557

Parity: even

Prime: No

Previous Prime: 30553

Next Prime: 30557

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 7639

Divisors: 1, 2, 4, 7639, 15278, 30556

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011101011100

Octal: 73534

Duodecimal: 15824

Hexadecimal: 775c

Square: 933669136

Square Root: 174.80274597385477

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

Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any element within a city block distance of two, and containing the value n(n+1)/2-2. A212039

Number of permutations (p(1),p(2),...,p(n)) of (1,2,...,n) such that p(i)-i is in {-2,0,7} for all i=1,...,n. A387021

run length of n-th run of digit 0 in A030548. A30556

Table read by antidiagonals: T(n, k) is the sum of the numbers inside the k-th square of size n X n when the square spiral is tiled with these squares, where each tile contains numbers which sum to the minimum possible value, and each number on the spiral can only be in one tile. A341363