Properties of the Number 75820

Seventy-Five Thousand Eight Hundred Twenty

Basics

Value: 75819 → 75820 → 75821

Parity: even

Prime: No

Previous Prime: 75797

Next Prime: 75821

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 17 × 223

Divisors: 1, 2, 4, 5, 10, 17, 20, 34, 68, 85

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

603 Try Today's Challenge

Representations

Binary: 10010100000101100

Octal: 224054

Duodecimal: 37A64

Hexadecimal: 1282c

Square: 5748672400

Square Root: 275.35431719876846

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 ∏_m>=1 (1+x^m)^A000009(m). A50342

Number of L-convex polyominoes with n cells, that is, convex polyominoes where any two cells can be connected by a path internal to the polyomino and which has at most 1 change of direction (i.e., one of the four orientations of the letter L). A126764

Period (multiplicative order base 10) of the terms in A116074 and A116075. A116076

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 0), (0, 0, -1), (0, 1, 1), (1, -1, 1)}. A148859

Coefficients of power series generated by the continued fraction-like form: A(x) = 1/(1 - x/sqrt(1 - 4x/cube-root(1 - 9x/4th-root(1 - 16x/5th-root(1 - 25x/... /n-th-root(1 - (n²)x/...)))))), where n-th-root(z)=z^1/n. A75820