Properties of the Number 11209

Eleven Thousand Two Hundred Nine

Basics

Value: 11208 → 11209 → 11210

Parity: odd

Prime: No

Previous Prime: 11197

Next Prime: 11213

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 11 × 1019

Divisors: 1, 11, 1019, 11209

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101111001001

Octal: 25711

Duodecimal: 65A1

Hexadecimal: 2bc9

Square: 125641681

Square Root: 105.87256490706173

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

Number of partitions of n having population standard deviation >= 2. A238662

"DIK" (bracelet, indistinct, unlabeled) transform of 1,2,3,4,... A32287

Length of n-th iterate of the mapping 00->0010, 01->001, 10->011, starting with 00. A289010

Second elementary symmetric function of the first n terms of (2,2,3,3,4,4,5,5...). A203299

a(n) = 1 + a(n-1) + a(n-2) + a(n-3) if n>=4; a(1) = a(2) = a(3) = 1. A248098

a(n) = (A262026(n) - 1)/2. A262028

a(n) is the smallest number k such that n·k is a partition number. A235704

a(n) = (n+1)*(2ⁿ⁺¹ - n)/2. A48470

Number of 6-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions. A187511

Numbers k such that τ(k-1) = (τ(k))² = τ(k+1), where τ(k) = A000005(k) (number of divisors of k). A190266