Properties of the Number 51424

Fifty-One Thousand Four Hundred Twenty-Four

Basics

Value: 51423 → 51424 → 51425

Parity: even

Prime: No

Previous Prime: 51421

Next Prime: 51427

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 1607

Divisors: 1, 2, 4, 8, 16, 32, 1607, 3214, 6428, 12856

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100011100000

Octal: 144340

Duodecimal: 25914

Hexadecimal: c8e0

Square: 2644427776

Square Root: 226.76860452893385

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

Expansion of continued fraction A(x) = 1/(1-x-x²/(1-x³-x⁴/(1-x⁵-x⁶/(1-x⁷-x⁸/(1-...))))). A88352

Triangle T(n,r) read by rows: order of the semigroup of orientation-preserving partial transformations of n elements with breath r. A289710

a(n) is least k such that k and 10k are anagrams in base n (written in base 10). A23102

Numbers n such that 9·10ⁿ + 5·R_n - 4 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A103100

Number of binary strings of length n with equal numbers of 00011 and 00101 substrings. A164229

Poincaré series for hyperbolic reflection group with Coxeter diagram shown in Comments. A265053

The order of the semigroup of orientation-preserving full transformations on n elements. A289715

Number of 2-matchings of the n-th centered square grid graph. A344679

Coefficient of xⁿ in the expansion of 1/( (1-x)² * (1-x²)³ )ⁿ. A370270

Numbers having four 7's in base 9. A43484