Properties of the Number 22745

Twenty-Two Thousand Seven Hundred Forty-Five

Basics

Value: 22744 → 22745 → 22746

Parity: odd

Prime: No

Previous Prime: 22741

Next Prime: 22751

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 4549

Divisors: 1, 5, 4549, 22745

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100011011001

Octal: 54331

Duodecimal: 111B5

Hexadecimal: 58d9

Square: 517335025

Square Root: 150.81445554057476

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

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 10. A31423

Numerators of continued fraction convergents to sqrt(301). A41566

Number of n X 2 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4. A197274

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (-1, 1, 1), (1, 0, 0), (1, 1, -1)}. A148764

Number of nondecreasing sequences that are differences of two permutations of 1,2,...,n. A19589

Decimal expansion of the negated value of the digamma function at 3/4. A200134

Expansion of 1/∏_m>=1 (1 - m·q^m)²¹. A22745

Number of 6Xn 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2. A275135

Number of 4Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302955