Properties of the Number -23108

Twenty-Three Thousand One Hundred Eight

Basics

Value: -23109 → -23108 → -23107

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 53 × 109

Divisors: 1, 2, 4, 53, 106, 109, 212, 218, 436, 5777

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101101001000100

Octal: -55104

Duodecimal: -11458

Hexadecimal: -5a44

Square: 533979664

Square Root: 152.0131573252789

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

a(n) is the coefficient of xⁿ in x/(1 + ∑_k>=1 (1/2)*(prime(k+1) - 1)*x^k). A74142

Index of Mersenne number A000225 that is also Mersenne prime A000668, minus n-th prime: a(n) = A000043(n) - A000040(n). A153801

Hypercomma numbers: n occurs in the sequence S[k+1]=S[k]+10·last_digit(S[k-1])+first_digit(S[k]) for each "legal" splitting n=concat(S[0],S[1]). A166508

3-comma numbers: n occurs in the sequence S[k+1]=S[k]+10·last_digit(S[k-1])+first_digit(S[k]) for three different splittings n=concat(S[0],S[1]). A166513

a(n) = 16·n² + 4. A158444

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 76. A31754

Antidiagonal sums of A163280. A163983

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 149", based on the 5-celled von Neumann neighborhood. A270319

Coefficients of expansion of:p(t,y)=-Exp[t/4]/(-2 + y·Exp[t/4] + y·Exp[3·t/4]). A171770