Properties of the Number 66569

Sixty-Six Thousand Five Hundred Sixty-Nine

Basics

Value: 66568 → 66569 → 66570

Parity: odd

Prime: Yes

Previous Prime: 66553

Next Prime: 66571

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 66569

Divisors: 1, 66569

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010000001001

Octal: 202011

Duodecimal: 32635

Hexadecimal: 10409

Square: 4431431761

Square Root: 258.0096897405212

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 of the form k² + 5. A56905

Least prime p such that pⁿ + 1 is the product of n distinct primes. A280005

Primes having only {5, 6, 9} as digits. A385797

Primes whose representation in base 256 can be interpreted as a decimal prime. A90719

Primes the squares of which are Fibbinary numbers (A003714). A144759

The n-th prime with n 0-bits in its binary expansion. A236695

Record values in A306400. A339096

a(n) is the smallest prime p such that ω(pⁿ + 1) = n. A379768

Triangular numbers whose reverse is also triangular. A66569

Numbers k such that k-17, k-1, k+1 and k+17 are consecutive primes. A262176