Properties of the Number 85865

Eighty-Five Thousand Eight Hundred Sixty-Five

Basics

Value: 85864 → 85865 → 85866

Parity: odd

Prime: No

Previous Prime: 85853

Next Prime: 85889

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 × 13 × 1321

Divisors: 1, 5, 13, 65, 1321, 6605, 17173, 85865

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111101101001

Octal: 247551

Duodecimal: 41835

Hexadecimal: 14f69

Square: 7372798225

Square Root: 293.027302482209

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

First occurrence of n in A234323: Number of nontrivial zeros of the Riemann ζ function in the interval 1/2 + i[n,n+1). A234800

Positions of 4's in A234323. A234805

Number of function calls of the second kind required to compute ack(3,n), where ack denotes the Ackermann function. A304371

a(1) = 2, a(n+1) = a(n)*{σ(a(n))}, where σ(n) is the sum of the divisors function. A85865