Properties of the Number 61887

Sixty-One Thousand Eight Hundred Eighty-Seven

Basics

Value: 61886 → 61887 → 61888

Parity: odd

Prime: No

Previous Prime: 61879

Next Prime: 61909

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 421

Divisors: 1, 3, 7, 21, 49, 147, 421, 1263, 2947, 8841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111000110111111

Octal: 170677

Duodecimal: 2B993

Hexadecimal: f1bf

Square: 3830000769

Square Root: 248.77097901483606

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

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 307", based on the 5-celled von Neumann neighborhood. A287598

Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X 2 array. A219589

Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having two adjacent 1's and two adjacent 0's, with rows and columns of the latter in lexicographically nondecreasing order. A227329

n + largest square less than or equal to n; numbers in the range [2k²,2k²+2k] for some k. A61887