Properties of the Number 6542

Six Thousand Five Hundred Forty-Two

Basics

Value: 6541 → 6542 → 6543

Parity: even

Prime: No

Previous Prime: 6529

Next Prime: 6547

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 3271

Divisors: 1, 2, 3271, 6542

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100110001110

Octal: 14616

Duodecimal: 3952

Hexadecimal: 198e

Square: 42797764

Square Root: 80.88263101556477

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

Number of primes <= 2ⁿ. A7053

Number of squared primes <= 2ⁿ. A60967

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 or 01010101. A259742

Length of the maximal prefix of noncomposite numbers on row n of A249821. A250473

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299879

"DHK[ 6 ]" (bracelet, identity, unlabeled, 6 parts) transform of 1,1,1,1,... A32247

Denominators of "Farey fraction" approximations to e. A119015

Number of cubes of primes <= 2ⁿ. A60969

Number of partitions of n such that (number of distinct parts) > least part. A239951

Number of inequivalent (mod D₄) ways to place 2 nonattacking knights on an n X n board. A243717