Properties of the Number 76561

Seventy-Six Thousand Five Hundred Sixty-One

Basics

Value: 76560 → 76561 → 76562

Parity: odd

Prime: Yes

Previous Prime: 76543

Next Prime: 76579

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 76561

Divisors: 1, 76561

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010101100010001

Octal: 225421

Duodecimal: 38381

Hexadecimal: 12b11

Square: 5861586721

Square Root: 276.6965847277483

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 p such that p, p+18, p+36 are consecutive primes. A52189

Balanced primes separated from the next lower and next higher prime neighbors by 18. A53073

Second term of balanced prime quartets: p(m)-p(m-1) = p(m+1)-p(m) = p(m+2)-p(m+1). A54801

Larger of emirp pairs that are merely reversals of their end digits. A263242

Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section. A287030

List of sets of four consecutive primes in arithmetic progression with common difference 18. A33450

Primes arising in A084726. A84727

Primes of the form x² + 18480·y². A173274

Centered 20-gonal (or icosagonal) primes. A264845

Primes of the form k!7+1, where k!7 is the septuple factorial number (A114799). A288717