Properties of the Number 19555

Nineteen Thousand Five Hundred Fifty-Five

Basics

Value: 19554 → 19555 → 19556

Parity: odd

Prime: No

Previous Prime: 19553

Next Prime: 19559

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 3911

Divisors: 1, 5, 3911, 19555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110001100011

Octal: 46143

Duodecimal: B397

Hexadecimal: 4c63

Square: 382398025

Square Root: 139.83919336151794

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

Values of n such that L(20) and N(20) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227523

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A304355

Number of partitions of n into an odd number of parts such that the set of even parts has only one element. A341495

Number of partitions of n with exactly one repeated part and that part is odd. A341497

Smallest k such that n⁸+k⁸, n⁴+k⁴, n²+k², n+k are simultaneously prime. A71564

Values of n such that L(18) and N(18) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227521

Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4 or 5 king-move adjacent elements, with upper left element zero. A304351

Smallest number whose cube is divisible by n. A19555