Properties of the Number 85909

Eighty-Five Thousand Nine Hundred Nine

Basics

Value: 85908 → 85909 → 85910

Parity: odd

Prime: Yes

Previous Prime: 85903

Next Prime: 85931

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 85909

Divisors: 1, 85909

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10100111110010101

Octal: 247625

Duodecimal: 41871

Hexadecimal: 14f95

Square: 7380356281

Square Root: 293.10237119477557

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

Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces the decimal expansion of e (Euler's number). A257764

Number of partitions of n such that the (sum of distinct odd parts) <= n/2. A284613

Indices of primes in the sequence defined by A(0) = 53, A(n) = 10·A(n-1) + 63 for n > 0. A101590

Primes having only {0, 5, 8, 9} as digits. A386081

Numbers k such that the continued fraction for sqrt(k) has period 365. A378955

Numbers k such that (41^k - 3^k)/38 is prime. A389223

Smallest prime p>prime(n) such that p+prime(n+1)-prime(n) is the next prime after p; or a(n)=0 if no such prime exists. A85909