Properties of the Number -24991

Twenty-Four Thousand Nine Hundred Ninety-One

Basics

Value: -24992 → -24991 → -24990

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 67 × 373

Divisors: 1, 67, 373, 24991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110000110011111

Octal: -60637

Duodecimal: -12567

Hexadecimal: -619f

Square: 624550081

Square Root: 158.08541994757138

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

Numerators of the partial alternating sums of the reciprocals of the unitary totient function (A047994). A379519

E.g.f. satisfies A(x) = exp( x/(1 - x/A(x)) ). A361090

Partial sums of A007202 (crystal ball sequence for hexagonal close-packing). A186707

Smallest denominator d such that the Sylvester expansion of n/d has n terms. A48860

Lengths of binary representations of prime Fibonacci numbers. A215367

Number of 2 X 2 matrices with all elements in {0,...,n} and prime permanent. A281090

a(n) = (∑_k=1..n k³ * p(k) * p(n-k)) * 2/n where p = A000041. A281708

Number of maximal irredundant sets in the n-ladder graph. A291100

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 41 ones. A31809

a(n) = (a(n-1)+1)*(a(n-3)+1)/a(n-4) for n > 3, a(0) = a(1) = a(2) = a(3) = 1. A276308