Properties of the Number -9615

Six Hundred Fifteen

Basics

Value: -9616 → -9615 → -9614

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 641

Divisors: 1, 3, 5, 15, 641, 1923, 3205, 9615

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10010110001111

Octal: -22617

Duodecimal: -5693

Hexadecimal: -258f

Square: 92448225

Square Root: 98.05610638812863

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

Coefficients of powers of x² of polynomials, called h(2,n,x²), appearing in a conjecture on alternating sums of fifth powers of odd-indexed Chebyshev S polynomials stated in A220671. A220672

Squarefree products of factors of Fermat numbers (A023394). A94358

T(n,k)=Number of length n+2 0..k arrays with the sum of the maximum minus the median of adjacent triples multiplied by some arrangement of +-1 equal to zero. A251935

Start with 1057 and repeatedly reverse the digits and add 2 to get the next term. A120215

a(n) = number of (s(0), s(1), ..., s(n)) such that s(i) is an integer, s(0) = 0, |s(1)| = 1, |s(i) - s(i-1)| <= 1 for i >= 2, s(n) = 3. Also a(n) = T(n,n-3), where T is the array defined in A025177. A25181

Number of points in Nⁿ of norm <= 3. A55418

Let σ*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if σ*_m (n) = k·n; sequence gives the (2,k)-anti-perfect numbers. A229860

Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks and between consecutive elements within the blocks are not larger than three. A287582

a(n) is the first component·of the distance vector (x,y) in an oblique 120-degree coordinate system, 0 <= y <= x, between two nodes of an infinite triangular lattice of one-ohm resistors, such that the resistance R between the two nodes is as close as possible to n ohms, i.e., abs(R - n) is minimized. y is A356204(n). A356203

Numbers k that divide the (left) concatenation of all numbers <= k written in base 11 (most significant digit on left). A29480