Properties of the Number 30993

Thirty Thousand Nine Hundred Ninety-Three

Basics

Value: 30992 → 30993 → 30994

Parity: odd

Prime: No

Previous Prime: 30983

Next Prime: 31013

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 10331

Divisors: 1, 3, 10331, 30993

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100100010001

Octal: 74421

Duodecimal: 15B29

Hexadecimal: 7911

Square: 960566049

Square Root: 176.04828883008207

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

Binomial transform of primes. A7443

L.g.f.: ∑_n>=1 xⁿ/n * ∏_d∣n (1 + d·x^d)ⁿ. A205485

Becomes prime after exactly 8 iterations of f(x) = sum of prime factors of x. A47827

Becomes prime or 4 after exactly 10 iterations of f(x) = sum of prime factors of x. A48132

8-automorphic numbers: final digits of 8·n² agree with n. A30993