Properties of the Number -213857

Two Hundred Thirteen Thousand Eight Hundred Fifty-Seven

Basics

Value: -213858 → -213857 → -213856

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 7 × 137 × 223

Divisors: 1, 7, 137, 223, 959, 1561, 30551, 213857

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110100001101100001

Octal: -641541

Duodecimal: -A3915

Hexadecimal: -34361

Square: 45734816449

Square Root: 462.4467536917088

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 (n+2)X(k+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime. A251819

a(n) = 128·n² + 2528·n + 12481. A157436

Number of (n+2)X(3+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime. A251814

Number of (n+2)X(7+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime. A251818