Properties of the Number 22247

Twenty-Two Thousand Two Hundred Forty-Seven

Basics

Value: 22246 → 22247 → 22248

Parity: odd

Prime: Yes

Previous Prime: 22229

Next Prime: 22259

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 22247

Divisors: 1, 22247

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011100111

Octal: 53347

Duodecimal: 10A5B

Hexadecimal: 56e7

Square: 494929009

Square Root: 149.15428253992576

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

Sum of 10 positive 9th powers. A3399

Number of solutions to c(1)*prime(4)+...+c(n)*prime(n+3) = -2, where c(i) = +-1 for i > 1, c(1) = 1. A261044

Primes p such that p, p+12, p+24 are consecutive primes. A52188

Prime numbers containing the string 222. A166580

Numerators of upper primes-only best approximates (POBAs) to sqrt(2); see Comments. A265774

Primes having only {2, 4, 7} as digits. A385784

Numerators of primes-only best approximates (POBAs) to sqrt(2); see Comments. A265776

Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+4) rectangle. A274598

Numbers k such that k⁴ = x³ + y² has an integer solution. A96741

Expansion of g.f. (1/2)*( a*(1+x)ⁿ + b*(1-x)ⁿ⁺²*LerchPhi(x, -n-1, 1) + c·2ⁿ⁺¹*(1-x)ⁿ⁺¹*LerchPhi(x, -n, 1/2) ), where a = -4, b = 2, and c = 2, read by rows. A168518