Properties of the Number -664335

Six Hundred Sixty-Four Thousand Three Hundred Thirty-Five

Basics

Value: -664336 → -664335 → -664334

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 7 × 19 × 37

Divisors: 1, 3, 5, 7, 9, 15, 19, 21, 27, 35

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10100010001100001111

Octal: -2421417

Duodecimal: -280553

Hexadecimal: -a230f

Square: 441340992225

Square Root: 815.0674818688327

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) = 9·binomial(n,4) = 3·n*(n-1)*(n-2)*(n-3)/8. A60008

Triangle defined by T(n,k) = T(n-1,k-1) + ∑_j=k..n-2 T(n-1,j)*2^j*T(j,k-1) for n>k>0 with T(n,n)=T(n,0)=1, read by rows. A152795

Odd numbers k such that k and φ(k) have the same number of divisors. A116518

Column 2 of triangle A152795. A152797