Properties of the Number 19955

Nineteen Thousand Nine Hundred Fifty-Five

Basics

Value: 19954 → 19955 → 19956

Parity: odd

Prime: No

Previous Prime: 19949

Next Prime: 19961

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 13 × 307

Divisors: 1, 5, 13, 65, 307, 1535, 3991, 19955

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110111110011

Octal: 46763

Duodecimal: B66B

Hexadecimal: 4df3

Square: 398202025

Square Root: 141.26216761751888

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 k-th triangular number contains only digits {0,1,9}. A119048

Coordination sequence for MgNi2, Position Ni3. A9934

Numbers k such that 5^k + 86 is prime. A378867

Numbers not in range of A324580. A324540

Decimal expansion of tangent of 57 degrees. A19955

Number of n X 4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 3,1,2,4,0 for x=0,1,2,3,4. A197075