Properties of the Number 22009

Twenty-Two Thousand Nine

Basics

Value: 22008 → 22009 → 22010

Parity: odd

Prime: No

Previous Prime: 22003

Next Prime: 22013

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 13 × 1693

Divisors: 1, 13, 1693, 22009

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101010111111001

Octal: 52771

Duodecimal: 108A1

Hexadecimal: 55f9

Square: 484396081

Square Root: 148.35430563350698

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

Position of first appearance of each integer in A088568 (number of 1's minus number of 2's in first n terms of A000002). A288605

Chebyshev S-sequence with Diophantine property. A77416

Number of partitions of n into decimal palindromes. A91580

Partial sums of A151791. A151792

Number of partitions of n into decimal repdigit numbers. A88669

Row sums of triangle A135858. A135859

Least k such that the first k terms of the Kolakoski sequence (A000002) contain n more 2's than 1's. A25503

A transform of the Fibonacci numbers. A99505

The number of distinct positions on an infinite chessboard reachable by the (2,3)-leaper (or zebra) in at most n moves. A297740

a(n) = index where A088568 (or equally A294448) first reaches or exceeds n in magnitude. A294449