Properties of the Number -15745

Fifteen Thousand Seven Hundred Forty-Five

Basics

Value: -15746 → -15745 → -15744

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 47 × 67

Divisors: 1, 5, 47, 67, 235, 335, 3149, 15745

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11110110000001

Octal: -36601

Duodecimal: -9141

Hexadecimal: -3d81

Square: 247905025

Square Root: 125.47908192204787

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

Largest finite number of distinct words arising in Watanabe's tag system {00, 1011} applied to a binary word w, over all starting words w of length n. A291067

a(n) = 384·n + 1. A229853

Numerator of ∑_{p prime, p-1∣n} 1/p. A27759

Numerator of ∑_{p prime, p-1 divides 2·n} 1/p. A27761

G.f.: (x+4·x³+x⁵)/((1-x)²*(1-x²)²*(1-x³)). A83707

a(n) is numerator of rational z(n) associated with the non-orientable map asymptotics constant p((n+1)/2). A278120

a(n) = ∑_k=1..n σ( (n/gcd(k,n))² ). A372227

Exponential (or binomial) half-convolution of A000045 (Fibonacci) with itself. A203578

Maximal number of spanning paths in a tournament on n nodes. A38375

Numbers n such that more than half of the reduced-residue system modulo 210 consists of primes in the following sense: in {210n + R} more than 24 = φ(210)/2 primes occur, i.e., 25-33, 35, 46. A95392