Properties of the Number 26431

Twenty-Six Thousand Four Hundred Thirty-One

Basics

Value: 26430 → 26431 → 26432

Parity: odd

Prime: Yes

Previous Prime: 26423

Next Prime: 26437

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 26431

Divisors: 1, 26431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011100111111

Octal: 63477

Duodecimal: 13367

Hexadecimal: 673f

Square: 698597761

Square Root: 162.57613601017832

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

Triangle read by rows: T(n, k) = (5·n-5·k+1)*T(n-1, k-1) +(5·k-4)*T(n-1, k) + 5·T(n-2, k-1) with T(n, 1) = T(n, n) = 1. A144442

Primes congruent to 58 mod 59. A142785

Smallest prime factor in product of previous terms +1 or -1. A102926

Primes p such that both 2p-1 and 2p²-2p+1 are prime. A274609

Numbers k such that (2^ord(2, k) - 1)/k is prime, where ord(2, k) is the multiplicative order of 2 (mod k). A297362

Numbers k such that (17·10^k + 43)/3 is prime. A294228

a(n) = least positive integer > a(n-1) and not a(i)*a(j)-1 for 1<=i<j<=n, with initial terms 1,2. A26431

Number of (n+1)X(n+1) -6..6 symmetric matrices with every 2X2 subblock having sum zero and one, two or three distinct values. A211257

Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with x(i)+x(j), x(i+1)+x(j+1), -(x(i)+x(j+1)), and -(x(i+1)+x(j)) having one, two or three distinct values for every i<=n and j<=n. A211501