Properties of the Number 8740

Eight Thousand Seven Hundred Forty

Basics

Value: 8739 → 8740 → 8741

Parity: even

Prime: No

Previous Prime: 8737

Next Prime: 8741

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 19 × 23

Divisors: 1, 2, 4, 5, 10, 19, 20, 23, 38, 46

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000100100

Octal: 21044

Duodecimal: 5084

Hexadecimal: 2224

Square: 76387600

Square Root: 93.48796714016194

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

Four times second pentagonal numbers: a(n) = 2·n*(3·n+1). A33580

Number of self-complementary 2-colored bracelets (turnover necklaces) with 2n beads. A7148

Denominator of the integral of the n-th power of the Cantor function. A95845

a(0) = 1; a(n) = 4 * ∑_k=1..n binomial(n,k) * a(k-1). A344735

Engel expansion of 1/e = 0.367879... . A59193

Graham-Pollak sequence with initial term 8. A91523

Record values in A132601. A132603

Dirichlet convolution of A003415(n) and A003415(A276086(n)), where A003415(n) is the arithmetic derivative of n, and A276086(n) gives the prime product form of primorial base expansion of n. A347389

Numbers k such that the k-th composition in standard order has even length and alternately equal and unequal parts, i.e., all run-lengths equal to 2. A351011

First of triples of consecutive happy numbers, i.e., the first of three consecutive integers each of which is a happy number (A007770). A72494