Properties of the Number 61951

Sixty-One Thousand Nine Hundred Fifty-One

Basics

Value: 61950 → 61951 → 61952

Parity: odd

Prime: No

Previous Prime: 61949

Next Prime: 61961

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 41 × 1511

Divisors: 1, 41, 1511, 61951

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000111111111

Octal: 170777

Duodecimal: 2BA27

Hexadecimal: f1ff

Square: 3837926401

Square Root: 248.89957814347537

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

G.f. A(x) satisfies A(x) = 1 + x*(1+x²)²*A(x)³. A385065

Bases in which 11 is a unique-period prime. A306076

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 203", based on the 5-celled von Neumann neighborhood. A286674

Number of chains in the power set lattice of an (n+3)-element set X_n+3 of specification n¹ 2¹ 1, that is, n identical objects of one kind, 2 identical objects of another kind and one other kind. It is the same as the number of fuzzy subsets X_n+3. A107953

a(n) = 1250·n² + 100·n + 1. A154375

Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 22 (most significant digit on right). A61951

Table read by antidiagonals: T(n,k) (n >= 3, k >= 1) is the number of vertices formed in a regular n-gon by straight line segments when connecting the n corner vertices to the points dividing the sides into k equal parts. A354544