Properties of the Number -18589

Eighteen Thousand Five Hundred Eighty-Nine

Basics

Value: -18590 → -18589 → -18588

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 29 × 641

Divisors: 1, 29, 641, 18589

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100100010011101

Octal: -44235

Duodecimal: -A911

Hexadecimal: -489d

Square: 345550921

Square Root: 136.34148304899725

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

a(n) = exp(1) * ∑_k>=0 (-1)^k*(k*(k + 1))ⁿ/k!. A308538

Records of minima of A154333, difference of a cube minus the next smaller square. A179386

Number of strict integer partitions with sum <= n that can be linearly combined using nonnegative coefficients to obtain n. A365311

Composites whose prime factorization in base 4 is an anagram of the number in base 4. A260048

Numerator of ∑_i=1..n 1/p(i)², p(i) = i-th prime. A61015

Consider biquanimous numbers that exclude 0's; sequence gives number of n-digit non-biquanimous numbers - number of n-digit biquanimous numbers. A65025

The number of cubefull numbers (A036966) not exceeding 10ⁿ. A362973

E.g.f. A(x) satisfies A(x) = 1/(exp(-x·A(x)²) - x·A(x)²). A379867

Numbers k of the form (x + y)*(x² + y²) such that (x + y) and (x² + y²) are primes. A349202

Number of integer partitions of the n-th even number or the n-th odd number using predecessors of prime numbers. A280962