Properties of the Number 65408

Sixty-Five Thousand Four Hundred Eight

Basics

Value: 65407 → 65408 → 65409

Parity: even

Prime: No

Previous Prime: 65407

Next Prime: 65413

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁷ × 7 × 73

Divisors: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111111110000000

Octal: 177600

Duodecimal: 31A28

Hexadecimal: ff80

Square: 4278206464

Square Root: 255.7498778103325

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) = 6·a(n-1) - 8·a(n-2) for n > 1; a(0) = 3, a(1) = 14. A171499

Number of integer partitions of n not containing more ones than any other part. A381544

Position of sqrt(n) in the mapping N2QuQR1 given in A065936. A65938

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 241", based on the 5-celled von Neumann neighborhood. A287096

Expansion of (4 - 7·x + 2·x²)/((1-2·x)*(1 - 2·x + 2·x²)). A100215

Triangle read by rows: T(n,k) is number of noncrossing trees with n edges and having k nonroot nodes of degree 1. A101449

Triangle read by rows: T(n,k) = (2ⁿ-1)*2^k-1, for n >= 1 and 1<=k<=n. A233757

Number of palindromic compositions of 2·n into parts <= n. A354294

Triangle read by rows: T(n,k) is number of noncrossing trees with n edges and having k branches. A101452

The number of degree-n² polynomials over Z/2Z that can be written as f(f(x)) where f is a polynomial. A350520