Properties of the Number 22649

Twenty-Two Thousand Six Hundred Forty-Nine

Basics

Value: 22648 → 22649 → 22650

Parity: odd

Prime: No

Previous Prime: 22643

Next Prime: 22651

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 11 × 29 × 71

Divisors: 1, 11, 29, 71, 319, 781, 2059, 22649

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100001111001

Octal: 54171

Duodecimal: 11135

Hexadecimal: 5879

Square: 512977201

Square Root: 150.49584711878265

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

a(n) = a(n-1) + a(n-2) + a(n-3) with a(0)=2, a(1)=1, a(2)=2. A214899

a(n) = least k such that the remainder when 17^k is divided by k is n. A128157

Numbers m such that the decimal number concat(8,m) is a square. A273363

a(n) = (prime(1+n)*prime(n)) + prime(n) + 1. A286624

a(n) = p² - p - 1 where p = prime(n), the n-th prime. A306190

Products of three distinct strong primes. A363782

Smallest k>1 such that k(p-1)-1 is divisible by p², p=n-th prime. A39914

Maximally idempotent integers with three or more factors. A306812

p²-p-1 that is not prime, where p is prime. A119609

Odd squarefree numbers n > 1 such that λ(n)² = φ(n), where λ is the Carmichael λ function and φ is Euler's totient function. A276980