Properties of the Number 7

Seven

Basics

Value: 6 → 7 → 8

Parity: odd

Prime: Yes

Previous Prime: 5

Next Prime: 11

Digit Sum: 7

Digital Root: 7

Palindrome: Yes

Factorization: 7

Divisors: 1, 7

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: 111

Octal: 7

Duodecimal: 7

Hexadecimal: 7

Square: 49

Square Root: 2.6457513110645907

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: Yes

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

No sequences found.