Properties of the Number -266681

Two Hundred Sixty-Six Thousand Six Hundred Eighty-One

Basics

Value: -266682 → -266681 → -266680

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 266681

Divisors: 1, 266681

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1000001000110111001

Octal: -1010671

Duodecimal: -10A3B5

Hexadecimal: -411b9

Square: 71118755761

Square Root: 516.411657498163

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

Wolstenholme numbers: numerator of ∑_k=1..n 1/k². A7406

Array T(n,k) read by ascending antidiagonals, where T(n,k) is the numerator of polygamma(n, 1) - polygamma(n, k). A255008

Coefficients for numerical differentiation. A2701

Primes in A007406. A123751

Primes that remain prime through 5 iterations of function f(x) = 3x + 10. A23338

Largest prime factor of the n-th central factorial number A001819(n). A120298

Least prime p such that H(2,n) = ∑_k=1..n1/k² == 0 (mod p) but there is no 0 < k < n with H(2,k) == 0 (mod p), or 1 if such a prime p does not exist. A242241

Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = numerator of ∑_j=1..n 1/j^k. A322265

Numerator of the product of the n-th square pyramidal number and the n-th generalized harmonic number in power 2. A119785