Properties of the Number 4961

Four Thousand Nine Hundred Sixty-One

Basics

Value: 4960 → 4961 → 4962

Parity: odd

Prime: No

Previous Prime: 4957

Next Prime: 4967

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 ² × 41

Divisors: 1, 11, 41, 121, 451, 4961

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001101100001

Octal: 11541

Duodecimal: 2A55

Hexadecimal: 1361

Square: 24611521

Square Root: 70.43436661176133

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

Octagonal numbers: n*(3·n-2). Also called star numbers. A567

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.12.12 2D tiling (cf. A250122). A299257

Pseudoprimes to base 3. A5935

Hexanacci numbers with a(0) = ... = a(5) = 1. A383

Centered 10-gonal numbers. A62786

a(n) = (1/3)*(n² + 2·n + 3)*(n+1)². A14820

Number of divisors of nⁿ, or of A000312(n). A62319

a(n) = n*(n² - 6·n + 11)/6. A50407

Number of partitions of n such that there is exactly one part which occurs twice, while all other parts occur only once. A90858

Square array, read by ascending antidiagonals, of the crystal ball sequences for the root lattices of type C_n. A142992