Properties of the Number 22399

Twenty-Two Thousand Three Hundred Ninety-Nine

Basics

Value: 22398 → 22399 → 22400

Parity: odd

Prime: No

Previous Prime: 22397

Next Prime: 22409

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 13 × 1723

Divisors: 1, 13, 1723, 22399

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011101111111

Octal: 53577

Duodecimal: 10B67

Hexadecimal: 577f

Square: 501715201

Square Root: 149.6629546681476

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

a(n) = (-4·n³ + 27·n² - 20·n + 3)/3. A161711

a(n) = 14·n² - 1. A158485

a(n) = 56·n² - 1. A158658

a(n) = round(3*(4/3)ⁿ). A227391

Pseudoprimes to base 42. A20170

Starting positions of strings of 3 0's in the decimal expansion of π. A50202

a(n) = index of the triangular number A076971(n). A76972

Number of binary strings of length n with no substrings equal to 0000, 0001, or 0110. A164411

Numbers that have all their divisors in A002191 (possible values for σ(n), A000203). A243765

Decimal representation of the middle column of the "Rule 129" elementary cellular automaton starting with a single ON (black) cell. A267444