Properties of the Number -223261

Two Hundred Twenty-Three Thousand Two Hundred Sixty-One

Basics

Value: -223262 → -223261 → -223260

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 17 × 23 × 571

Divisors: 1, 17, 23, 391, 571, 9707, 13133, 223261

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110100000011101

Octal: -664035

Duodecimal: -A9251

Hexadecimal: -3681d

Square: 49845474121

Square Root: 472.50502642829105

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

T(n,k)=Number of nXk 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A279466

Numerator of 1/3 + 3/5 + 5/7 + ... + (2n - 1)/(2n + 1). A61484

σ(n)-φ(n) and σ(n)+φ(n) are two palindromes greater than 2. A116031

Number of nX5 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A279463

a(1) = 1, then a(n) is the least integer > a(n-1) such that n is the maximum element in the continued fraction for 1/a(1) + 1/a(2) + ... + 1/a(n). A174604