Properties of the Number 64667

Sixty-Four Thousand Six Hundred Sixty-Seven

Basics

Value: 64666 → 64667 → 64668

Parity: odd

Prime: Yes

Previous Prime: 64663

Next Prime: 64679

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 64667

Divisors: 1, 64667

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110010011011

Octal: 176233

Duodecimal: 3150B

Hexadecimal: fc9b

Square: 4181820889

Square Root: 254.29707037242878

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

Primes having only {4, 6, 7} as digits. A385794

Triangle read by rows: T(n,k) is the number of nonseparable rooted toroidal maps with n edges and k faces, n >= 2, k = 1..n-1. A342989

Number of nonseparable rooted toroidal maps with n + 5 edges and n + 1 vertices. A6410

Numerators of coefficients in g.f. that satisfies: [xⁿ] A(x)^1/n = 0 for all n>1, with a(0)=a(1)=1. A107100

Third term of weak prime sextet: p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2). A54830

Primes which contain the fax number of the beast (667). A321001

Primes having only {0, 4, 6, 7} as digits. A386072

Regard A064413 as giving a permutation of the positive integers; sequence gives second infinite cycle, beginning at its smallest term, 73. A64667

Denominators of coefficients in g.f. that satisfies: [xⁿ] A(x)^1/n = 0 for all n>1, with a(0)=a(1)=1. A107101

Equals two maps: number of nX2 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and vertical neighbors in a random 0..1 nX2 array. A220238