Properties of the Number 61131

Sixty-One Thousand One Hundred Thirty-One

Basics

Value: 61130 → 61131 → 61132

Parity: odd

Prime: No

Previous Prime: 61129

Next Prime: 61141

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 41 × 71

Divisors: 1, 3, 7, 21, 41, 71, 123, 213, 287, 497

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111011001011

Octal: 167313

Duodecimal: 2B463

Hexadecimal: eecb

Square: 3736999161

Square Root: 247.24684022247888

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

Numbers k such that φ(k) = φ(k+2) - φ(k+1). A229552

Numbers n such that φ(n)*σ(n) = φ(n+1)*σ(n+1). A244439

Numbers k such that k and k² use only the digits 1, 3, 6, 7 and 9. A137039

Convolution of A000009 and A000290. A360487

Numbers n such that (n⁶ + 1091)/4 is prime. A181112

Number of degree-n even permutations of order dividing 8. A61131