ℕ atory
Play Now

Properties of the Number 30526

Thirty Thousand Five Hundred Twenty-Six

Basics

Value: 30525 → 30526 → 30527

Parity: even

Prime: No

Previous Prime: 30517

Next Prime: 30529

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 15263

Divisors: 1, 2, 15263, 30526

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011100111110

Octal: 73476

Duodecimal: 157BA

Hexadecimal: 773e

Square: 931836676

Square Root: 174.71691389215871

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 A(n,k) of rooted identity trees with n nodes and k-colored non-root nodes; square array A(n,k), n>=0, k>=0, read by antidiagonals. A255517
Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) = 1 and T(n,k) = (1/n) * ∑j=1..n 2n-j * binomial(n,j) * binomial(n+(k-1)*j,j-1) for n > 0. A336707
Number of rooted identity trees with n n-colored non-root nodes. A255523
Number of rooted identity trees with n nodes and 5-colored non-root nodes. A52797
Number of (2+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7. A252307
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 225", based on the 5-celled von Neumann neighborhood. A270944
a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 1, a(3) = 3. A295678
a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 2, a(1) = 1, a(2) = 1, a(3) = 1. A295685
Centered pentagonal numbers which are semiprimes. A382132
Centered pentagonal numbers which are squarefree semiprimes. A381043