Properties of the Number 51975

Fifty-One Thousand Nine Hundred Seventy-Five

Basics

Value: 51974 → 51975 → 51976

Parity: odd

Prime: No

Previous Prime: 51973

Next Prime: 51977

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 ² × 7 × 11

Divisors: 1, 3, 5, 7, 9, 11, 15, 21, 25, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101100000111

Octal: 145407

Duodecimal: 260B3

Hexadecimal: cb07

Square: 2701400625

Square Root: 227.98026230355995

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 of Bessel numbers read by rows: T(n,k) is the number of k-matchings of the complete graph K(n). A100861

Triangle of coefficients of Bessel polynomials (exponents in decreasing order). A1497

Triangle a(n,k) (n >= 0, 0 <= k <= n) of coefficients of Bessel polynomials y_n(x) (exponents in increasing order). A1498

Triangle of Bessel numbers read by rows. Row n gives T(n,n), T(n,n-1), T(n,n-2), ..., T(n,1) for n >= 1. A111924

Irregular triangle read by rows: coefficients C(j,k) of a partition transform for direct Lagrange inversion. A134685

Triangle read by rows: T(n,k) is the number of end rhyme patterns of a poem of an even number of lines (2n) with 1<=k<=n evenly rhymed sounds. A156289

a(n) is the number of ways to partition an n X n X n cube into 4 noncongruent cuboids. A384311

Another version of triangular array in A083061: triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 3, 6, 10, 15, 21, 28, ...] δ [1, 2, 3, 4, 5, 6, 7, 8, ...] where δ is the operator defined in A084938. A94665

Triangle of coefficients of a companion polynomial to the Gandhi polynomial. A83061

Coefficients of Bessel polynomials y_n (x). A1880