Properties of the Number 17243

Seventeen Thousand Two Hundred Forty-Three

Basics

Value: 17242 → 17243 → 17244

Parity: odd

Prime: No

Previous Prime: 17239

Next Prime: 17257

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 43 × 401

Divisors: 1, 43, 401, 17243

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100001101011011

Octal: 41533

Duodecimal: 9B8B

Hexadecimal: 435b

Square: 297321049

Square Root: 131.31260411704582

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

Composite and every divisor (except 1) contains the digit 4. A62670

a(n) = n*(19·n-15)/2. A226490

a(n) = A001209(n) + 1. A196069

Numerators of continued fraction convergents to sqrt(561). A42074

Generalized Motzkin paths with no hills and 3-horizontal steps. A99170

Number of partitions of n into parts not of the form 23k, 23k+11 or 23k-11. Also number of partitions with at most 10 parts of size 1 and differences between parts at distance 10 are greater than 1. A35999

Numbers n such that σ(n) - φ(n) is a repdigit greater than 2. A116020

If A is a set of integers, the (2-fold) sumset consists of all the numbers which can be written as the sum of two (not necessarily distinct) elements in A. a(n) is the number of subsets of [1,2n] which are sumsets for some set of positive integers. A120411

Numbers n such that 6ⁿ-5ⁿ⁺¹ is prime. A272781

a(n) = (9·n + 6)¹¹. A17243