Properties of the Number 51421

Fifty-One Thousand Four Hundred Twenty-One

Basics

Value: 51420 → 51421 → 51422

Parity: odd

Prime: Yes

Previous Prime: 51419

Next Prime: 51427

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 51421

Divisors: 1, 51421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100100011011101

Octal: 144335

Duodecimal: 25911

Hexadecimal: c8dd

Square: 2644119241

Square Root: 226.76198976018887

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

Logarithmic transform of the cubes A000578. A300452

Primes p such that the differences between the 5 consecutive primes starting with p are (6,4,6,2). A78963

Primes of the form 2·n²+30·n+13. A243889

Numbers n such that 2·10ⁿ + 7·R_n + 2 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A102959

Primes p such that (12·p - 1, 12·p + 1) and (18·p - 1, 18·p + 1) are twin primes. A138660

Number of 0..n arrays x(0..3) of 4 elements with nondecreasing average value. A200764

Square array A(n,k), n >= 1, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f. log(1 + ∑_j>=1 j^k * x^j/j!). A308484

Number of Deutsch paths with peaks at odd height. A350114

Number of digraphs on n unlabeled nodes with a sink (or, with a source). A51421

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 1 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 1 2 4 6 or 7. A252555