Properties of the Number 7925

Seven Thousand Nine Hundred Twenty-Five

Basics

Value: 7924 → 7925 → 7926

Parity: odd

Prime: No

Previous Prime: 7919

Next Prime: 7927

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 317

Divisors: 1, 5, 25, 317, 1585, 7925

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111011110101

Octal: 17365

Duodecimal: 4705

Hexadecimal: 1ef5

Square: 62805625

Square Root: 89.02246907382428

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

a(n) = 4*(n+1)*n + 5. A78370

Monotonic ordering of set S generated by these rules: if·and y are in S then x² + y² is in S, and 1 is in S. A192476

Smallest positive number that can be written as sum of distinct Fibonacci numbers in n ways. A13583

Number of squares on infinite chessboard at <= n knight's moves from a fixed square. A18836

Numbers of the form (4k+3)²-8 or (4k+5)²+4. A214405

Number of nonisomorphic unrooted unicursal planar maps with n edges (unicursal means that exactly two vertices are of odd valency; there is an Eulerian path). A69724

Numbers that are the sum of ten fourth powers in eight or more ways. A345601

Numbers that are the sum of ten fourth powers in nine or more ways. A345602

Numbers that are the sum of ten fourth powers in exactly nine ways. A345861

Consider a 2-D cellular automaton generated by the Schrandt-Ulam rule of A170896, but confined to a semi-infinite strip of width n, starting with one ON cell at the top left corner; a(n) is the period of the resulting structure. A6447