Properties of the Number 70544

Seventy Thousand Five Hundred Forty-Four

Basics

Value: 70543 → 70544 → 70545

Parity: even

Prime: No

Previous Prime: 70537

Next Prime: 70549

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 4409

Divisors: 1, 2, 4, 8, 16, 4409, 8818, 17636, 35272, 70544

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001001110010000

Octal: 211620

Duodecimal: 349A8

Hexadecimal: 11390

Square: 4976455936

Square Root: 265.60120481654445

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

Number of equilateral triangles formed out of matches that can be found in a hexagonal chunk of side length n in hexagonal array of matchsticks. A45949

a(n) is the determinant of the 2 X 2 matrix whose entries (when read by rows) are the n-th primes congruent to 1, 3, 5, 7 mod 8 respectively. A337145

Numerator of ∑_k=0..n (2^k * (k!)²)/(2k + 1)!. A277586

Number of n-bead necklaces labeled with numbers -1..1 allowing reversal, with sum zero and first and second differences in -1..1. A208963

a(0) = 1; a(n) = ∑_k=1..n -λ(k+1)*a(n-k), where λ() is the Liouville function (A008836). A307240

Number of squarefree numbers s such that n < s < 2n. A70544