Properties of the Number -162162

One Hundred Sixty-Two Thousand One Hundred Sixty-Two

Basics

Value: -162163 → -162162 → -162161

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 7 × 11 × 13

Divisors: 1, 2, 3, 6, 7, 9, 11, 13, 14, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111100101110010

Octal: -474562

Duodecimal: -79A16

Hexadecimal: -27972

Square: 26296514244

Square Root: 402.6934317815477

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

Coefficient triangle of certain polynomials N(4; m,x). A62264

Triangle read by rows: T(n,k) = n!*(n+k-1)!/((n-k)!*(n-1)!*(k!)²) for 0 <= k <= n, with T(0,0) = 1. A123160

a(n) = binomial(n+4,n)*binomial(n+8,n). A105251

a(n) = A143176(n)/n. A143177

a(n) = 126*(n+1)*binomial(n+5,9)/5. A27814

Triangle, read by rows, defined by T(n,k) = A000108(n-k)*A001147(k)*C(n,2·k), for k=0..[n/2], n>=0, where A000108 is the Catalan numbers and A001147 is the double factorials. A125080

Numbers n of the form 4·k+2 such that (σ(n) mod n) divides n, where σ is given by A000203. A254999

a(n) = 14*(n+1)*binomial(n+5,8). A27813

Triangle read by rows: T(n, k) = binomial(n, k) * binomial(n+k, n-k). A92371

Number of labeled histories for rooted 5-furcating trees with 4n+1 leaves if simultaneous 5-furcations are not allowed. A381866