Properties of the Number -40664

Forty Thousand Six Hundred Sixty-Four

Basics

Value: -40665 → -40664 → -40663

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 13 × 17 × 23

Divisors: 1, 2, 4, 8, 13, 17, 23, 26, 34, 46

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1001111011011000

Octal: -117330

Duodecimal: -1B648

Hexadecimal: -9ed8

Square: 1653560896

Square Root: 201.6531675922796

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

Expansion of (1 + sqrt(1-4·x))/(2-4·x). A158499

Triangle formed by coefficients of the expansion of p(x, n), where p(x,n) = (1 + 2·x - x²)^{n + 1}*∑_{j >= 0} (j+1)ⁿ*(-2·x + x²)^j. A156901

Numbers n such that every digit of n and n-th prime contains a loop (only digits 0,4,6,8,9 in n and n-th prime). A107624

Number of partitions of n into lower Wythoff numbers (A000201). A192184

a(4n+1)=2a(4n), a(4n+2)=2a(4n+1), a(4n+3)=2a(4n+2), a(4n+4)=2a(4n+3)+A007583(n). A139784