Properties of the Number -25603

Twenty-Five Thousand Six Hundred Three

Basics

Value: -25604 → -25603 → -25602

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 25603

Divisors: 1, 25603

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010000000011

Octal: -62003

Duodecimal: -12997

Hexadecimal: -6403

Square: 655513609

Square Root: 160.0093747253579

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

Primes of the form k² + 3. A49423

Numbers that are the sum of eight fourth powers in exactly ten ways. A345842

Pseudo-safe-primes: numbers n = 2m+1 with 2^m congruent to n+1 or 3n-1 modulo m·n, but m composite. A300193

The first prime of 8 consecutive primes a, b, c, d, e, f, g, h such that a + g = c + e and b + h = d + f. A292618

List of prime factors of 10^{10^(10¹⁰⁰}) - 10. A227246

Sixth prime p such that (p+n)²+n is prime but (p+j)²+j is not prime for all 0<j<n. A238678

P(n,k) is an array read by rows, with n > 0 and k=1..5, where row n gives the chain of 5 consecutive primes {p(i), p(i+1), p(i+2), p(i+3), p(i+4)} having the symmetrical property p(i) + p(i+4) = p(i+1) + p(i+3) = 2·p(i+2) for some index i. A267028

Positive numbers k such that k and 2·k are anagrams in base 9 (written in base 9). A23079

Duplicate of A049423. A121825

Number of distinct solutions of sum{i=1..6}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 2..n-2. A180829