Properties of the Number -613

Six Hundred Thirteen

Basics

Value: -614 → -613 → -612

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 613

Divisors: 1, 613

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1001100101

Octal: -1145

Duodecimal: -431

Hexadecimal: -265

Square: 375769

Square Root: 24.758836806279895

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

Determinant of rank n matrix of 1..n² filled successively along antidiagonals. A69480

a(n) = A000217(n) - A048702(n). A75113

a(n) = 36·n² - 810·n + 2753, producing the conjectured record number of 45 primes in a contiguous range of n for quadratic polynomials, i.e., abs(a(n)) is prime for 0 <= n < 44. A117081

Triangle of numerators for rational convergents to Taylor series of 1/γ(x+1). A386675

a(n) = bin_prime_sum(fibonacci(A001651[n])), where fibonacci(A001651[n]) is A014437[n]. A59878

Partial sums of A073579. A77039

a(n) = ∑_k=1..n (-k)^floor(n/k - 1). A345037

Expansion of o.g.f. (1-x²)/(1-x+x⁴). A193884

Expansion of x*(1 - 3·x + x²) / (1 - x - 2·x² + x³). A122161

Expansion of (1-x)/(1+2·x+x²-2·x³). A78063