Properties of the Number 31349

Thirty-One Thousand Three Hundred Forty-Nine

Basics

Value: 31348 → 31349 → 31350

Parity: odd

Prime: No

Previous Prime: 31337

Next Prime: 31357

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 23 × 29 × 47

Divisors: 1, 23, 29, 47, 667, 1081, 1363, 31349

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101001110101

Octal: 75165

Duodecimal: 16185

Hexadecimal: 7a75

Square: 982759801

Square Root: 177.05648816126453

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

Number of axially symmetric polyominoes with n cells. A6746

MM-numbers of labeled graphs with loops spanning an initial interval of positive integers. A320461

Number of integer partitions of n into an odd number of parts, the greatest of which is odd. A340385

Number of connected graphs with one cycle of length 4. A368

Number of polyominoes with n cells and exactly one line of reflection symmetry, where that one line is parallel to the grid and passes through the center of at least one square. A349328

a(n) = (A085249(n) - 1)/6. A88349

a(n) = a(n-1) * (11·a(n-1) - 16·a(n-2)) / (a(n-1) + 10·a(n-2)) with a(1) = 1, a(2) = 2. A247518

Number of compositions of n into 5 parts such that no two adjacent parts are equal. A106354

3-multiplicative persistence: number of iterations of "multiply 3rd powers of digits" needed to reach 0 or 1. A31349