Properties of the Number 30481

Thirty Thousand Four Hundred Eighty-One

Basics

Value: 30480 → 30481 → 30482

Parity: odd

Prime: No

Previous Prime: 30469

Next Prime: 30491

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 11 × 17 × 163

Divisors: 1, 11, 17, 163, 187, 1793, 2771, 30481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011100010001

Octal: 73421

Duodecimal: 15781

Hexadecimal: 7711

Square: 929091361

Square Root: 174.58808664969095

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

Heptagonal (or 7-gonal) pyramidal numbers: a(n) = n*(n+1)*(5·n-2)/6. A2413

Number of integer partitions of n whose product is divisible by the sum of primes of their parts. A330954

Structured disdyakis dodecahedral numbers (vertex structure 9). A100161

Products of three distinct strong primes. A363782

Number of hyperplanes defined by the nonzero differences of two permutations of order n. A381243

Numbers k such that 2^k modulo Fibonacci(k) is prime, i.e., A057862(k) is prime. A128161

Expansion of (1/x) * Series_Reversion( x * (1 / (1 + x) - x⁵) ). A389445

Odd heptagonal pyramidal numbers. A218324

Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 2 (mod 5). A35563

Positive integers k such that (d(k+1) - d(k)) * (-1)^k is positive, where d(k) = the number of positive divisors of k. A138046