Properties of the Number 44415

Forty-Four Thousand Four Hundred Fifteen

Basics

Value: 44414 → 44415 → 44416

Parity: odd

Prime: No

Previous Prime: 44389

Next Prime: 44417

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 7 × 47

Divisors: 1, 3, 5, 7, 9, 15, 21, 27, 35, 45

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010110101111111

Octal: 126577

Duodecimal: 21853

Hexadecimal: ad7f

Square: 1972692225

Square Root: 210.74866547620178

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

Numbers m such that 6m+1, 12m+1, 18m+1, 36m+1 and 72m+1 are all prime. A257035

Odd numbers k for which A003961(k) > 2·k and A003961(k)-2·k OR A003961(k)-σ(k) = A003961(k)-2·k, where OR is bitwise-or (A003986) and A003961 is fully multiplicative with a(p) = nextprime(p). A388029

Coefficient of x²ⁿ⁺¹/(2n+1)! in arctan(arcsin(x)-arctan(x))=3/3!*x³-15/5!*x⁵+945/7!*x⁷-44415/9!*x⁹... A13410

Triangular array read by rows: row n shows the coefficients of this polynomial of degree n: (1/n!)*(numerator of n-th derivative of 1/(1-3x+x²)). A328645

Expansion of e.g.f.: sech(arctanh(x)+log(x+1))=1-4/2!*x²+6/3!*x³+45/4!*x⁴-300/5!*x⁵... A13166

E.g.f. satisfies: A'(x) = (1 + A(x))*(1 + A(x)²). A255676

Numbers n such that string 8,3 occurs in the base 10 representation of n but not of n-1. A44415