Properties of the Number 27956

Twenty-Seven Thousand Nine Hundred Fifty-Six

Basics

Value: 27955 → 27956 → 27957

Parity: even

Prime: No

Previous Prime: 27953

Next Prime: 27961

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 29 × 241

Divisors: 1, 2, 4, 29, 58, 116, 241, 482, 964, 6989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110110100110100

Octal: 66464

Duodecimal: 14218

Hexadecimal: 6d34

Square: 781537936

Square Root: 167.20047846821492

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

Numerator of the average height of a binary search tree on n elements. A195582

Least positive integer k such that prime(prime(k)), prime(prime(k·n)), prime(p) and prime(q) form a 4-term arithmetic progression for some pair of primes p and q. A261462

Number of -n..n arrays x(0..3) of 4 elements with zero sum and nonzero second differences. A200554

Number of achiral triangular polyominoes with 6n cells and sixfold rotational symmetry. A364684

Irregular table read by rows: Take a vesica piscis with all diagonals drawn, as in A341877. Then T(n,k) = number of k-sided polygons in that figure for k >= 3. A342153

a(n) = T(2n+1, n+4), T given by A027948. A27956