Properties of the Number -29930

Twenty-Nine Thousand Nine Hundred Thirty

Basics

Value: -29931 → -29930 → -29929

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 41 × 73

Divisors: 1, 2, 5, 10, 41, 73, 82, 146, 205, 365

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010011101010

Octal: -72352

Duodecimal: -153A2

Hexadecimal: -74ea

Square: 895804900

Square Root: 173.0028901492689

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

Smallest even k such that lpf(k-3) > lpf(k-1) >= prime(n), where lpf=least prime factor (A020639). A242719

a(n) = prime(n)² + 1. A66872

Smallest even k such that lpf(k-1) = prime(n), while lpf(k-3) > prime(n), where lpf=least prime factor (A020639). A242489

Numbers of the form m² + 1 that can be expressed in more than one way as j² + k² with j > k > 1. A299708

The smallest numbers of every class in a classification of positive numbers (see comment). A247395

Numbers of the form m² + 1 that can be expressed in more than one way as j² + k² with j > k > 1 and gcd(j,k) = 1. A300166

Numbers m such that σ(m-1) is a prime. A270413

Numbers that can be represented as a sum of two distinct nontrivial prime powers in three or more ways. A225104

The least common multiple of 1 + n² and 1 + n³. A281661

a(n) = ∑_{k >= 0} floor(n^2·k+1 / (2·k+1)!). A309104