Properties of the Number 804

Eight Hundred Four

Basics

Value: 803 → 804 → 805

Parity: even

Prime: No

Previous Prime: 797

Next Prime: 809

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 67

Divisors: 1, 2, 3, 4, 6, 12, 67, 134, 201, 268

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100100

Octal: 1444

Duodecimal: 570

Hexadecimal: 324

Square: 646416

Square Root: 28.35489375751565

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 ∏_k>=1 (1 - k·x^k)^k. A266964

Numbers k such that k divides 1 + ∑_j=1..k prime(j)² = 1 + A024450(k). A128166

Triangle T(n,k) of number of rooted trees with n nodes and k leaves, 1 <= k <= n. A55277

Partial sums of A299272. A299273

Numbers whose prime indices cannot be partitioned into constant blocks with distinct sums. A381636

Schur's 1926 partition theorem: number of partitions of n into parts 6n+1 or 6n-1. A3105

Average of twin prime pairs (A014574), divided by 2. Equivalently, 2·a(n)-1 and 2·a(n)+1 are primes. A40040

Generalized 14-gonal numbers: m*(6·m-5), m = 0,+1,-1,+2,-2,+3,-3,... A195818

Numbers n such that n³² + 1 is prime. A6315

Number of partitions of n in which the least part is even. A26805