Properties of the Number 7481

Seven Thousand Four Hundred Eighty-One

Basics

Value: 7480 → 7481 → 7482

Parity: odd

Prime: Yes

Previous Prime: 7477

Next Prime: 7487

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7481

Divisors: 1, 7481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110100111001

Octal: 16471

Duodecimal: 43B5

Hexadecimal: 1d39

Square: 55965361

Square Root: 86.49277426467485

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: Yes

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = floor(3ⁿ / 2ⁿ). A2379

Partial sums of A299266. A299267

Primes of the form k² - k - 1. A2327

Number of compositions of n whose negation is not unimodal. A332669

Primes such that the sum of the predecessor and successor primes is divisible by 29. A112859

Primes such that the sum of the predecessor and successor primes is divisible by 43. A113158

a(n) = 4·n² - 6·n + 1. A125202

Larger of two consecutive prime numbers such that p1·p2·d + d = average of twin prime pairs, d (δ) = p2 - p1. A153377

Primes of form n² + 256. A256776

Discriminants of real quadratic fields with form class number 3. A391421