Properties of the Number 67

Sixty-Seven

Basics

Value: 66 → 67 → 68

Parity: odd

Prime: Yes

Previous Prime: 61

Next Prime: 71

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 67

Divisors: 1, 67

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000011

Octal: 103

Duodecimal: 57

Hexadecimal: 43

Square: 4489

Square Root: 8.18535277187245

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

The prime numbers. A40

Coordination sequence for planar net 3.3.3.3.6 (also called the fsz net). A250120

The positive integers. Also called the natural numbers, the whole numbers or the counting numbers, but these terms are ambiguous. A27

Squarefree numbers: numbers that are not divisible by a square greater than 1. A5117

The odd numbers: a(n) = 2·n + 1. A5408

Gpf(n): greatest prime dividing n, for n >= 2; a(1)=1. A6530

Largest squarefree number dividing n: the squarefree kernel of n, rad(n), radical of n. A7947

Powers of primes. Alternatively, 1 and the prime powers (p^k, p prime, k >= 1). A961

Lpf(n): least prime dividing n (when n > 1); a(1) = 1. Or, smallest prime factor of n, or smallest prime divisor of n. A20639

Completely multiplicative with a(prime(k)) = prime(k+1). A3961

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