Properties of the Number -161671

One Hundred Sixty-One Thousand Six Hundred Seventy-One

Basics

Value: -161672 → -161671 → -161670

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 19 × 67 × 127

Divisors: 1, 19, 67, 127, 1273, 2413, 8509, 161671

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111011110000111

Octal: -473607

Duodecimal: -79687

Hexadecimal: -27787

Square: 26137512241

Square Root: 402.0833246977547

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

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) is ∑_i=0..n (-1)^n-i*binomial(n,i)*∑_j=0..i binomial(i,j)^k. A328747

Constant term in the expansion of (-1 + (1 + w) * (1 + x) * (1 + y) * (1 + z) + (1 + 1/w) * (1 + 1/x) * (1 + 1/y) * (1 + 1/z))ⁿ. A328750

a(n) = ∑_i=0..n (-1)^n-i*binomial(n,i)*∑_j=0..i binomial(i,j)ⁿ. A328811