Properties of the Number 30938

Thirty Thousand Nine Hundred Thirty-Eight

Basics

Value: 30937 → 30938 → 30939

Parity: even

Prime: No

Previous Prime: 30937

Next Prime: 30941

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 31 × 499

Divisors: 1, 2, 31, 62, 499, 998, 15469, 30938

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011011010

Octal: 74332

Duodecimal: 15AA2

Hexadecimal: 78da

Square: 957159844

Square Root: 175.8920123257449

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

G.f. satisfies: A(x) = C(x)² * A(x³*C(x)⁴), where C(x) is the g.f. of the Catalan numbers (A000108). A120899

Eight bishops and one elephant on a 3 X 3 chessboard. a(n) = 2ⁿ⁺² - 3·F(n+2). A175660

Index in A353715 of the first term divisible by 2ⁿ and no higher power of 2, or -1 if no such term exists. A353727

Numbers k such that there is a number m < k satisfying A000203(k) = A000203(m) = m + k - gcd(m,k). A124141

Sum of first n 7-almost primes. A86059

Iccanobirt prime indices (4 of 15): Indices of prime numbers in A102114. A102134

Number of nondecreasing integer sequences of length 25 with sum zero and sum of absolute values 2n. A158159

Floor(exp(10/11)*n!). A30938