Properties of the Number -2603

Six Hundred Three

Basics

Value: -2604 → -2603 → -2602

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 19 × 137

Divisors: 1, 19, 137, 2603

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -101000101011

Octal: -5053

Duodecimal: -160B

Hexadecimal: -a2b

Square: 6775609

Square Root: 51.01960407529639

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

Inverse Euler transform of the unsigned Moebius function A008966. A320782

a(n) = 1 + ∑_k=0..n-1 (-1)^k * binomial(n-1,k) * a(k) * a(n-1-k). A386300

a(n) = (7-(-5)ⁿ)/6. A166122

Nonzero numerators in asymptotic expansion of the Riemann-Seigel Z-function. A50276

Expansion of (1-x)^-1/(1+x²-2·x³). A77887

a(n) = n² + 2. A59100

Preperiod (or threshold) of orbit of Post's {00, 1101} tag system applied to the word (100)ⁿ, or -1 if this word has an unbounded trajectory. A284119

a(n) = numerator of (n² + 2)/(n + 2). A306367

Number of ways to split an integer partition of n into contiguous subsequences with strictly decreasing sums. A336135

Number of permutations T(n,k) in S_n containing an increasing subsequence of length k; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A214152