Properties of the Number 61401

Sixty-One Thousand Four Hundred One

Basics

Value: 61400 → 61401 → 61402

Parity: odd

Prime: No

Previous Prime: 61381

Next Prime: 61403

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 97 × 211

Divisors: 1, 3, 97, 211, 291, 633, 20467, 61401

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111111011001

Octal: 167731

Duodecimal: 2B649

Hexadecimal: efd9

Square: 3770082801

Square Root: 247.79225169484215

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

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise. A235548

Number of (n+1)X(3+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise. A235543

Number of (n+1)X(4+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise. A235544

Numbers k such that 2^k-61 is prime. A182156

From solution to a Picard-Fuchs equation. A61401