Properties of the Number 26457

Twenty-Six Thousand Four Hundred Fifty-Seven

Basics

Value: 26456 → 26457 → 26458

Parity: odd

Prime: No

Previous Prime: 26449

Next Prime: 26459

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 8819

Divisors: 1, 3, 8819, 26457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110011101011001

Octal: 63531

Duodecimal: 13389

Hexadecimal: 6759

Square: 699972849

Square Root: 162.65607889039993

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 undirected circular permutations i₀, i₁, ..., i_n of 0, 1, ..., n such that all the n+1 numbers |i₀²-i₁²|, |i₁²-i₂²|, ..., |i_n-1²-i_n²|, |i_n²-i₀²| are of the form (p-1)/2 with p an odd prime. A229005

Lexicographically earliest sequence of nonnegative integers such that two distinct terms differ by at least 4 decimal digits. A346000

Numbers n such that p = n² + 2, p+2 and p+6 are consecutive primes. A86380

Numerators of continued fraction convergents to sqrt(827). A42596

Numbers k such that (1_100.2_200.3_300 ... 8_800.9_900)*10^k + 1 is prime, i.e., 1 repeated 100 times, concatenated with 2 repeated 200 times, etc. A108055

a(n) = least positive integer < a(n-1) and not a(i)*a(j)-2 for 1<=i<j<=n. A26457

Number of nX4 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A280176