Properties of the Number 23706

Twenty-Three Thousand Seven Hundred Six

Basics

Value: 23705 → 23706 → 23707

Parity: even

Prime: No

Previous Prime: 23689

Next Prime: 23719

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 439

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 439, 878

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101110010011010

Octal: 56232

Duodecimal: 11876

Hexadecimal: 5c9a

Square: 561974436

Square Root: 153.9675290442761

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) = prime(n)*prime(n-1) - 1. A23515

Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={3,4}. A79958

Number of (w,x,y,z) with all terms in {1,...,n} and 2w·x<=3·y*z. A211921

a(n) = (p-1)! mod p² where p = n-th prime. A112660

Let F(x) = 1 + 1·x + 4·x² + 10·x³ + ..., the g.f. for A000293 (solid partitions), and write F(x) = 1/∏_n>=1 E(n)^a(n) where E(n) = ∏_k>=n (1 - x^n·k). A193718

Numbers k such that if you subtract k from its reversal you get a positive number with the same digits as k. A121970

Number of nX2 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to zero or two horizontal or vertical neighbors. A199240

Total area of all trapezoids with bases p+q, q-p and height p·q with p,q prime, n = p+q and p < q. A335187

Number of unlabeled and connected graphs on n vertices which are chordal and P5-free. A79452

Numbers with a single 0 in their base 4 expansion. A23706