Properties of the Number 85697

Eighty-Five Thousand Six Hundred Ninety-Seven

Basics

Value: 85696 → 85697 → 85698

Parity: odd

Prime: No

Previous Prime: 85691

Next Prime: 85703

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 17 × 71 ²

Divisors: 1, 17, 71, 1207, 5041, 85697

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111011000001

Octal: 247301

Duodecimal: 41715

Hexadecimal: 14ec1

Square: 7343975809

Square Root: 292.7404994188539

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

Numbers k such that k and k+1 are both divisible by the square of their largest prime factor. A354558

Divide odd numbers into groups with prime(n) elements and add together. A34960

Odd numbers k, not powers of primes, such that σ(k) == 2 modulo 8 and σ(σ(k)) == 6 modulo 8. A332458

Structured disdyakis triacontahedral numbers (vertex structure 7). A100159

a(n) = 128·n² + 2528·n + 12481. A157436

a(n) = n * (4·n + 3)². A322675

a(n) = 128·n² - 32·n + 1. A157331

Numbers n such that n*φ(n-1) is a perfect square. A69069

Numerator of Euler(n,9). A157864

Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=2, k=0 and l=-1. A176678