Properties of the Number -15803

Fifteen Thousand Eight Hundred Three

Basics

Value: -15804 → -15803 → -15802

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 15803

Divisors: 1, 15803

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110110111011

Octal: -36673

Duodecimal: -918B

Hexadecimal: -3dbb

Square: 249734809

Square Root: 125.70998369262483

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

Expansion of (E₄(q) - 28·E₄(q²) + 63·E₄(q³) - 36·E₄(q⁶)) / 240. A288485

Safe primes which are also Sophie Germain primes. A59455

Sum of cubes of the first n primes. A98999

Primes p with q(p) - 1 also prime, where q(.) is the strict partition function (A000009). A234644

T(n,k)=Number of (n+2)X(k+2) nonnegative integer arrays with all values the knight distance from the upper left minus as much as 1, with successive minimum path knight move differences either 0 or +1, and any unreachable value zero. A253424

Primes of form ∑_k=1..n prime(k)³. A66525

Primes p such that (2·p)³ + 1 is a semiprime. A237038

Third member of a sexy prime quadruple: value of p+12 such that p, p+6, p+12 and p+18 are all prime. A46123

Primes p such that there is no Carmichael number pqr, p<q<r q, r primes. A51663

a(n) = ∑_i=0..n digsum₇(i)⁴, where digsum₇(i) = A053828(i). A231679